CHARLOTTESVILLE, Va. — The man authorities believe was the last person seen with a University of Virginia student before she disappeared has been charged with abduction, police said Tuesday night.

Charlottesville Police Chief Timothy Longo said at a news conference that officers are looking for Jesse Leroy Matthew Jr., 32, after obtaining a felony arrest warrant from a magistrate on a charge of abduction with intent to defile. They also continue to search for 18-year-old Hannah Graham, who went missing early the morning of Sept. 13.

Matthew was last seen Saturday when he stopped by the police station with his mother and uncle to ask for a lawyer. Police say he sped away afterward, losing officers who had him under surveillance and prompting authorities to issue two arrest warrants for reckless driving.

Longo said police, who have searched Matthew’s car once and his apartment twice, decided they had probable cause to charge him in Graham’s disappearance. He declined to say what new information police had.