Boston police vehicle carrying Mayor Wu collides with another car in Roslindale

The Boston Police Department is investigating a car crash involving one of its vehicles Tuesday, which was carrying Mayor Michelle Wu as a passenger.

A police accident report obtained by WBUR shows Wu reported minor pain at the scene of the crash, but declined medical attention. The report said Wu would "seek medical attention at a later time, if necessary." No major injuries were reported.

Boston police officer Keyanna Smith was driving the mayor's official unmarked Ford Mach E at the time of the crash, according to the police report.

Smith said she was traveling down Blakemore Street in Roslindale with the car's police lights and siren activated. Smith said she stopped at a red light at Hyde Park Avenue before slowly pulling into traffic.

Video obtained by Boston 25 News appears to show the moment the mayor's vehicle collided with a passenger vehicle as the officer made a left turn.

The driver of the other car was a woman, and there was a child in the back seat, according to the police report. They initially declined medical attention, but were later transported by Boston EMS for further evaluation.

Officer Smith also reported pain on the left side of her body; she was transported by EMS for evaluation and discharged the same day. A Boston police roster shows Smith joined the department in 2013.

It's unclear why Smith activated the vehicle's lights and siren. A Boston police spokesperson said the department is investigating to determine whether the officer broke any department rules or regulations.

The report said the crash occurred at about 9:50 a.m. on Tuesday. Wu later appeared at an 11:30 a.m. school relocation and expansion announcement at Madison Park Technical Vocational High School and John D. O’Bryant School of Mathematics and Science in Roxbury.

Boston police say its officers historically have provided dignitary protection to Boston's mayors for travel around the city.

WBUR's Ally Jarmanning contributed reporting.