On Monday, a city bus collided with a vehicle on set of Sandra Bullock's new film "The Heat" in Boston, Massachusetts.

The accident occurred during morning rush hour, and a dozen passengers were reportedly sent to the hospital for non-life threatening injuries.

"People were screaming and they were everywhere on the bus," one uninjured passenger told Boston.com.

Details of the accident haven't been released.

In the film, Bullock plays an FBI agent who teams up with a Boston police officer to take down a Russian mobster. Melissa McCarthy also stars.