Police cars, emergency vans and police converged at the 24th Street BART plaza Thursday at 12:40 p.m. after a teenager on the 14 Mission was caught tagging inside the bus, according to the driver.

An officer at the scene said an undercover officer on the bus saw a 12 to 13-year-old at the back of the bus tagging.  He went to stop the juvenile, but the teenager pulled the escape lever on a window and tried to leave.

The officer was able to restrain him before he got through the window and the suspect is in custody.

The bus was taken out of service at 24th Street, emptied and police were looking for witnesses.

When someone at the scene complained of all the commotion for a tagging incident, a strawberry vendor watching it said, “There has to be order.”

The 14 Mission was headed south on Mission when the incident occurred.