This post has been updated. See below for details.

Former USC and San Diego Chargers football star Junior Seau was found dead Wednesday of an apparent self-inflicted gunshot wound to the chest at his Oceanside home.

His girlfriend found him dead in his bed, according to law enforcement sources.

Oceanside police didn't immediately have any comment about what was happening at Seau's home but are expected to provide details soon.

PHOTOS: Junior Seau | 1969 - 2012

Television footage showed police swarming around the home. The San Diego coroner's office could not confirm any information.

In 2010, Seau was involved in an accident in which his sport-utility vehicle went off a beachside cliff. The accident occurred after he was arrested in Oceanside on suspicion of domestic violence.

Seau also played for the Miami Dolphins and the New England Patriots.

PHOTOS: Notable deaths of 2012

[Updated at 12:46 p.m., May 2: A previous version of this post said Seau suffered a gunshot wound to the head. Oceanside Police Chief Frank McCoy announced that Seau suffered a wound to the chest.]

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-- Tony Perry

Photo: Crowds gather outside Junior Seau's home. Credit: Fox 5 San Diego