A Chicago Police officer was shot and killed in the line of duty Monday night on the city’s South Side.

CPD says that around 8 p.m. Monday, officers stopped a vehicle with three people inside. When officers approached the vehicle, the driver fired multiple shots, which sounded like rapid fire, according to Supt. Larry Snelling.

The shots fatally wounded Officer Enrique Martinez. A passenger inside the vehicle was also killed in the incident. At least one officer returned fire, WGN reports.

Police said the driver who opened fire tried to drive off, hitting and injuring another officer. The driver then got out of the vehicle and ran but could not get away. The driver was taken into custody, along with the third person inside the vehicle, a passenger who was in the backseat.

The passenger shot and killed inside the vehicle was found to be in possession of a handgun, police say. CPD also recovered another weapon from the scene that had an extended magazine.

Officer Martinez, 26, served with CPD for nearly three years. He had been working out of the 6th District.

WGN reports that Martinez was engaged to be married and has a brother who’s also a Chicago police officer.

"Earlier tonight we lost a hero who was working to make this city safer. Officer Enrique Martinez was only 26 years old with his whole life and career ahead. The details and likely criminal background of the offenders will be out soon enough. Tonight, tomorrow and for eternity, we honor his sacrifice," the Fraternal Order of Police: Chicago Lodge No. 7 said on Facebook.