ST. PAUL, Minn. (AP) _ Court documents say the boyfriend of a pregnant teenager admitted to fatally shooting her in St. Paul, but said it was an accident.

Luis Chacon-Villeda has not been charged in the death of 18-year-old Eileen Viveros-Varga on March 9. Reports says one of the search warrants filed in Ramsey County District Court says Chacon-Villeda call 911 after the shooting and told a dispatcher he had fired the shot. Officers arrested Chacon-Villeda on suspicion of murder, but he was later released and charged with drug possession.

The shooting remains under investigation.