HARTFORD, Conn. (AP) — Navy and Marine Corps veterans of Iraq and Afghanistan with mental health problems were unfairly given less-than-honorable discharges by the Navy, preventing them from getting Veterans Affairs benefits and other support, according to a lawsuit filed Friday.

The lawsuit filed in federal court in Connecticut seeks class-action status for thousands of Navy and Marine Corps veterans. The veterans are represented by students with Yale Law School's Veterans Legal Services Clinic, which filed a similar lawsuit against the Army last year.

Navy officials did not immediately...