A crash Sunday near Nationals Park that left three people injured — one of them critically — was caused by a driver who sped away from a D.C. police officer who tried to pull him over for a traffic infraction, according to a department spokesman.

But the spokesman, Dustin Sternbeck, said authorities do not believe the officer was chasing the vehicle. “Our investigation to this point has revealed no evidence that suggests that a pursuit was initiated,” he said.

The crash occurred about 4:30 p.m. in the 1500 block of South Capitol Street. Sternbeck said an officer tried to pull a car over on South Capitol Street near the bridge over the Anacostia River. The reason for the stop could not be determined.

“The driver did not comply and fled,” Sternbeck said, and moments later crashed into another car. Police said the male driver of the fleeing car was ejected and taken to a hospital in critical condition. A woman and a child in the other car were also injured, and police said they were treated for injuries that were not believed to be life threatening.

Sternbeck said the incident remains under investigation. No charges have been filed.