An AT&T worker was wounded in a shooting Monday morning in west suburban Berwyn.

Just after 11 a.m., the AT&T employee was shot during an attempted armed robbery in the 6300 block of West Park Avenue, Berwyn police said.

The employee was working on some electrical panels when he was approached by a male who demanded his wallet, police said. The employee tossed his wallet to the robber and attempted to get away when he was shot in the back. He was taken to Loyola University Medical Center in Maywood. His age and condition were not immediately known.

The offender also fired at a second person who was sitting inside a work vehicle, police said. The vehicle was struck, but the person was not injured. Police said that person was not an AT&T employee.

The offender was described as black, in his teens or early 20s, wearing a grey hoodie and blue jeans, police said. He was armed with a black handgun. He ran south through an alley between the 3100 blocks of Cuyler and Highland, and then ran east on 32nd Street.

Due to the shooting, which occurred about four blocks away, Freedom Middle School at 3016 Ridgeland Ave. was placed in lockdown, police said.