Former San Diego Charger linebacker Junior Seau told investigators that he fell asleep at the wheel before crashing his SUV off a cliff in Carlsbad, police said.

Carlsbad police told the Los Angeles Times in a statement Monday night that "it is believed that Seau fell asleep at the wheel." Police said there was no evidence that Seay was intoxicated at the time.

Just before 9 a.m. Monday, Carlsbad police received a 911 call about a vehicle crash near the cliffs at Carlsbad Boulevard and Solamar Ave. Police and rescue personnel found Seau in a silver 2004 Cadillac Escalade on the beach below the cliffs.

Seau was taken to Scripps La Jolla Hospital for treatment of injuries that are not believed to be life threatening.

Seau crashed after being released from jail, where he was booked on felony domestic violence charges, according to Oceanside police. The 12-time Pro Bowler was arrested shortly after midnight after he allegedly assaulted his 25-year-old live-in girlfriend during an argument at the couple's Oceanside home, Lt. Leonard Mata said .

Seau was not at the home when officers arrived, but called his girlfriend a short time later and agreed to come back to the residence, Mata said. Shortly after midnight, he returned and was arrested without incident. The woman's injuries did not require medical treatment, Mata said.

Seau was booked into the Vista jail on felony charges of spousal assault at about 3 a.m. He posted bail and was released from jail at about 5 a.m., police said.

Helicopter video clearly showed the tire marks left by the Escalade when it left the roadway and drove off the cliff. The SUV, which was remove from the beach and placed on a flatbed tow truck, showed heavy front-end damage and damage to the passenger side of the vehicle.

Seau played college football at the University of Southern California and was drafted by the Chargers in 1990. He played for the Chargers through the 2002 season and was traded to the Miami Dolphins in 2003. Seau announced his first retirement in 2006, but he signed with the New England Patriots days later.

Seau has not officially retired from professional football, though early this year he announced his intention to do so in the near future.