SEATTLE (Associated Press) - Tony Fein, an Iraq war veteran and NFL rookie linebacker who played with the Baltimore Ravens during the preseason, has died of unexplained causes after collapsing at a friend's house in what his agent said appears to be "an accidental situation."

Fein, 27, an undrafted rookie free agent from Mississippi, was lying face down and unconscious, vomiting and barely breathing when medics arrived at a house outside Port Orchard on the Kitsap Peninsula on Tuesday morning, said Mike Wernet, a battalion chief and medical officer with South Kitsap Fire & Rescue.

Fein's agent, Milton D. Hobbs, a lawyer in Oxford, Miss., said he knew of no medical condition or previous severe illness in Fein.

Fein, a native of Port Orchard, was released by the Ravens in their last major round of roster cuts on Sept. 5.

Fein played quarterback for South Kitsap High School before graduating in 2000. At age 19 he enlisted and spent 3 1/2 years in the Army, including duty in Iraq as a 19 Delta reconnaissance scout, according to the Ravens' Web site.