A recent attack on a Chicago Transit Authority bus driver was caught on camera, and the head of the drivers' union said it was targeted.

Keith Hill, president of Amalgamated Transit Union 241, is also worried about driver safety heading into summer.

The video shows a CTA bus driver fighting someone as passengers looked on.

"The request of two dollars and 50 cents to ride the bus triggered an altercation," Hill said.

The attack happened at 9:06 p.m. Friday of last week, police said.

The person who was asked to pay and did not was not the man seen fighting the driver in the video, but a woman who had jumped on the No. 79 bus 20 minutes earlier at Ford City Mall.

"She started going back and forth with the operator, to the point she called another person – assumedly her boyfriend - to meet her to fight the operator," Hill said.