One person was in custody Sunday after a Chicago Police officer was injured during a traffic stop on Chicago's West Side.

At 6:41 p.m. Saturday, police pulled over a car that was someone was driving erratically on Madison Street near Kilpatrick Avenue in the West Garfield Park neighborhood.

As officers investigated, the driver tried to speed off — and hit and dragged an officer, police said. The officer fell to the ground, and the officer's weapon discharged.

No one was struck by the gunfire.

The driver sped off in the car, which was found a short time later in the 4500 block of West Adams Street a few blocks away.

Following the incident, officers blocked off the scene near Madison Street and Kilpatrick Avenue, as police investigated in the alley and along Kilpatrick Avenue. A few evidence markers lined the street.

The driver was found and arrested a short time later, police said.