SCRANTON (AP) - Authorities have announced charges against a man in what they called an ambush-style shooting that critically wounded a Scranton police officer last week.

Aiden Gabriel Deininger, 20, of Old Forge is charged in Lackawanna County with three counts of attempted homicide of law enforcement officers, criminal homicide and other charges in the shooting of a Scranton police detective about 4:30 a.m. Thursday.

Officials said three Scranton police detectives were sitting in an unmarked police vehicle on the city’s west side because they had information that a shooting was about to occur. Authorities said the suspect, later identified as Deininger, spotted the police vehicle and fired five rounds into it, hitting police Detective Kyle Gilmartin twice in the head.

Another officer returned fire five times, hitting the suspect, who collapsed nearby. Officers rushed the wounded officer in a patrol vehicle to Geisinger Medical Center, and the suspect was also taken to the hospital, authorities said.