BOSTON (CBS) — A group of teens were caught on surveillance camera vandalizing at least two Red Line MBTA cars in Downtown Crossing Monday afternoon.

Transit police responded to reports that the teens had knocked out a window on the train at the station.

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According to a police report, surveillance video showed the teens walking up and down the platform banging on the train cars while people were inside. They then boarded the train.

An officer on board a different car on the same train saw about 200 teens wearing blue uniforms from Braintree High School. The officer said about 10 to 15 of the teens were hitting the windows.

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A Red Line window damaged by teens (Photo credit MBTA)

A Red Line window damaged by teens (Photo credit MBTA)

Two windows were shattered in one car and a window was knocked out in another car.

Two teens — one wearing a #22 Braintree High School basketball jersey and another wearing a white hat — were standing next to one of the broken windows, according to the police report.

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No arrests have been made.