Thunder Bay police have charged a member of the police service with failing to stop for a red light.

The charge stems from a collision last Thursday that sent four people to hospital, including two children.

It happened when a marked police cruiser collided with another vehicle near the corner of Arthur and Franklin streets just after 7:30 p.m. on April 10th.

Police say the officer involved was en route to a service call, but it was not an emergency. According to a police news release, the officer was not seriously injured in the incident, and is "back to work on her regular schedule."

A similar collision in March led to another officer being charged with a red light violation. Police said he was en route to a robbery at a Mac's convenience store when his cruiser collided with a compact sedan at Victoria Avenue and Waterloo Street.

In that incident, the officer behind the wheel was accompanied by a civilian who was on a ride-along. Both suffered minor injuries, as did the driver of the other vehicle.