CHENNAI: Tension prevailed at the Chennai Mofussil Bus Terminus (CMBT) in Koyambedu during the early hours of Saturday after transport workers refused to operate buses alleging that two of their staff were assaulted by unruly passengers.

Passengers told media persons that the driver and conductor of a bus to Polur, Tiruvannamalai district were sleeping in the bus despite the filling of seats and when some passengers questioned them, the staff responded with abuse and asked them to find another bus.