CLAYTON — Authorities say a deadly St. Louis-area ATM shooting happened when two guards got into a gunfight with two would-be robbers and killed one of the assailants.

St. Louis County police on Wednesday identified the man killed as 19-year-old Jordan Pruitt, of St. Louis.

Police said in a news release that the guards were confronted Tuesday by two armed men wearing ski masks while servicing the machine. The release says both guards fired their weapons, and at least one of the suspects fired his weapon.

One suspect is still at large. Police have provided no description of the suspect or the vehicle in which he fled.

Police say both guards have cooperated with the investigation.