A Pottstown, Pennsylvania, man was killed by police late Sunday after waging an hours-long standoff with police, during which he shot an officer in the shoulder, officials said Monday.

Andrew Jackson Ecker, 25, was shot during the standoff at his home, according to a statement from Montgomery County District Attorney Kevin Steele.

Ecker crashed a vehicle belonging to his father’s business into another car at about 5 p.m. Sunday, police said. When officers responded to the crash, they said they saw Ecker reach for a .22 caliber handgun inside the vehicle, the Inquirer reports.

The younger Ecker fled on foot to his home, which was a few hundred yards away from the crash scene. Once there, police said, he barricaded himself inside his residence and fired at the officers chasing him, striking Pottstown Police Officer Caleb Whitney in his shoulder.

Officer Whitney was treated and released at a local hospital.

Back at the scene, Ecker refused commands to leave his home, forcing officers to block off the surrounding streets, police say. Other personnel from departments throughout Montgomery County responded, including the county SWAT team.

Investigators say Ecker refused to exit the home and a five-hour-long barricade situation unfolded, involving members of the Montgomery County SWAT team, Fox 29 reports.

One of Ecker's relatives worked with SWAT negotiators to try to convince him to peacefully exit the home, but investigators say Ecker refused.

Just before 11 p.m., investigators say Ecker was fatally shot.