Police said they made an arrest after shots were fired in the District at two cars, one of them a police car. iStock) (iStock/iStock)

For reasons best known to themselves, people in cars driving on the street sometimes fire shots at other cars. But it might have seemed unlikely that anyone wishing to shoot at a vehicle would open fire on a police car.

However, that is what the police say happened early Monday in Southeast Washington. According to police, a shot was fired from another vehicle at a police car in the 2200 block of Savannah Street SE about 2 a.m.

Officers were in the car at the time, and the rear fender of their car was struck, the police said. After the gunfire, police said someone drove away became involved in a collision at Alabama Avenue and Stanton Road and ran from the crash scene. Police who investigated the incident said they found a gun.

Two days before that, police said, at about the same time of the morning, in the 3000 block of Pennsylvania Avenue someone shot from one vehicle into another. A car was hit and an occupant was wounded, police said. They said the wound was not life-threatening.

Police said they made an arrest Monday in the the Pennsylvania Avenue incident.

They said Randy Sparrow, 31, of Southeast, was charged in that incident with assault with a dangerous weapon.

After further investigation, police said, they charged the same man with assault on a police officer while armed.

The arrest and the charges were reported by police in a statement on Tuesday. But the statement gave no motive for the gunfire.