<PAGE>

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                Date of Report (Date of earliest event reported)
                                  June 30, 2006

STRUCTURED ASSET SECURITIES CORPORATION (as Depositor under the Trust Agreement,
dated as of June 1, 2006, providing for the issuance of Lehman XS Trust Mortgage
Pass-Through Certificates, Series 2006-10N)

                        Lehman XS Trust, Series 2006-10N
                                (Issuing Entity)

                     Structured Asset Securities Corporation
              (Exact Name of Depositor as Specified in its Charter)

                          Lehman Brothers Holdings Inc.
               (Exact Name of Sponsor as Specified in its Charter)

                     Structured Asset Securities Corporation
             (Exact Name of Registrant as Specified in its Charter)

          Delaware                      333-129480                74-2440850
(State or Other Jurisdiction            (Commission            (I.R.S. Employer
      Of Incorporation)                File Number)          Identification No.)

           745 Seventh Avenue, 7th Floor
                   New York, NY                                      10019
     (Address of Principal Executive Offices)                     (Zip Code)

     Registrant's telephone number, including area code: (212) 526-7000

                                    No Change
          (Former Name or Former Address, if Changed Since Last Report)

<PAGE>

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[_]  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[_]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[_]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[_]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))

<PAGE>

     Item 8.01. Other Events

          Dechert LLP has been retained by this Registrant as counsel for its
Registration Statement on Form S-3 (Commission File No. 333-129480) in
connection with various transactions. Legal opinions by Dechert LLP to be
incorporated into the Registration Statement are attached hereto as Exhibit 5.1,
Exhibit 8.1 and Exhibit 23.1.

     Item 9.01. Financial Statements and Exhibits

     (a)  Not applicable.

     (b)  Not applicable.

     (c)  Not applicable.

     (d)  Exhibits:

          5.1  Opinion of Dechert LLP as to legality (including consent of such
               firm).

          8.1  Opinion of Dechert LLP as to certain tax matters (including
               consent of such firm included in Exhibit 5.1).

         23.1  Consent of Dechert LLP (included in Exhibit 5.1).

<PAGE>

                                   SIGNATURES

          Pursuant to the requirements of the Securities Exchange Act of 1934,
as amended, the Registrant has duly caused this report to be signed on its
behalf by the undersigned hereunto duly authorized.

                                        STRUCTURED ASSET SECURITIES
                                           CORPORATION


                                        By: /s/ Michael C. Hitzmann
                                            ------------------------------------
                                            Name: Michael C. Hitzmann
                                            Title: Senior Vice President

Dated:  June 30, 2006

<PAGE>

                                  EXHIBIT INDEX

Exhibit No.                         Description
-----------                         -----------
    5.1       Opinion of Dechert LLP as to legality (including consent of such
              firm).

    8.1       Opinion of Dechert LLP as to certain tax matters (including
              consent of such firm included in Exhibit  5.1).

   23.1       Consent of Dechert LLP (included in Exhibit 5.1).
[{"type": "8-K", "sequence": "1", "filename": "p413894-8k.txt", "description": "FORM 8-K", "secsgml_size_bytes": 4412}]
{"company-data": {"conformed-name": "STRUCTURED ASSET SECURITIES CORP", "cik": "0000808851", "assigned-sic": "6189", "irs-number": "742440858", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-82904", "film-number": "06937241"}, "business-address": {"street1": "745 7TH AVENUE", "city": "NEW YORK", "state": "NY", "zip": "10019", "phone": "2125267000"}, "mail-address": {"street1": "745 7TH AVENUE", "city": "NEW YORK", "state": "NY", "zip": "10019"}, "former-company": [{"former-conformed-name": "STRUCTURED ASSET SEC CORP SERIES 1998-2", "date-changed": "19980203"}, {"former-conformed-name": "STRUCTURED ASSET SEC CORP MORT PASS THR CERT SERIES 1997-4", "date-changed": "19980106"}]}
UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                Date of Report (Date of earliest event reported)
                                  June 30, 2006

STRUCTURED ASSET SECURITIES CORPORATION (as Depositor under the Trust Agreement,
dated as of June 1, 2006, providing for the issuance of Lehman XS Trust Mortgage
Pass-Through Certificates, Series 2006-10N)

                        Lehman XS Trust, Series 2006-10N
                                (Issuing Entity)

                     Structured Asset Securities Corporation
              (Exact Name of Depositor as Specified in its Charter)

                          Lehman Brothers Holdings Inc.
               (Exact Name of Sponsor as Specified in its Charter)

                     Structured Asset Securities Corporation
             (Exact Name of Registrant as Specified in its Charter)

          Delaware                      333-129480                74-2440850
(State or Other Jurisdiction            (Commission            (I.R.S. Employer
      Of Incorporation)                File Number)          Identification No.)

           745 Seventh Avenue, 7th Floor
                   New York, NY                                      10019
     (Address of Principal Executive Offices)                     (Zip Code)

     Registrant's telephone number, including area code: (212) 526-7000

                                    No Change
          (Former Name or Former Address, if Changed Since Last Report)
Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[_]  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[_]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[_]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[_]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))
Item 8.01. Other Events

          Dechert LLP has been retained by this Registrant as counsel for its
Registration Statement on Form S-3 (Commission File No. 333-129480) in
connection with various transactions. Legal opinions by Dechert LLP to be
incorporated into the Registration Statement are attached hereto as Exhibit 5.1,
Exhibit 8.1 and Exhibit 23.1.

     Item 9.01. Financial Statements and Exhibits

     (a)  Not applicable.

     (b)  Not applicable.

     (c)  Not applicable.

     (d)  Exhibits:

          5.1  Opinion of Dechert LLP as to legality (including consent of such
               firm).

          8.1  Opinion of Dechert LLP as to certain tax matters (including
               consent of such firm included in Exhibit 5.1).

         23.1  Consent of Dechert LLP (included in Exhibit 5.1).
SIGNATURES

          Pursuant to the requirements of the Securities Exchange Act of 1934,
as amended, the Registrant has duly caused this report to be signed on its
behalf by the undersigned hereunto duly authorized.

                                        STRUCTURED ASSET SECURITIES
                                           CORPORATION

                                        By: /s/ Michael C. Hitzmann
                                            ------------------------------------
                                            Name: Michael C. Hitzmann
                                            Title: Senior Vice President

Dated:  June 30, 2006
EXHIBIT INDEX

Exhibit No.                         Description
-----------                         -----------
    5.1       Opinion of Dechert LLP as to legality (including consent of such
              firm).

    8.1       Opinion of Dechert LLP as to certain tax matters (including
              consent of such firm included in Exhibit  5.1).

   23.1       Consent of Dechert LLP (included in Exhibit 5.1).