A Prince George’s County police officer shot and killed a pit bull that police say “charged aggressively toward” the officer and security guards at an apartment complex Tuesday in District Heights.

Someone at the rental office of the apartment in the 2700 block of Lorring Drive first called 911 about 4:20 p.m. to report that there was an “aggressive dog” near some school children getting off a bus, said Cpl. Maria McKinney, a Prince George’s County police spokeswoman. She said that when an officer arrived, the dog, a pit bull, “charged aggressively toward” him and apartment security guards. The officer, she said, shot and killed the dog.

“That officer was forced to defend himself and the security officers,” McKinney said.

McKinney said she did not know if the dog’s owner was on the scene and what — if any — efforts were made to control the animal. She said she also did not know what portion of the encounter might have been witnessed by the children.