A bus driver was arrested for drink-driving on Thursday after a member of the public reported seeing him drinking on duty.
Police received reports of the driver of the 2.40pm Faresaver bus from Frome to Chippenham swigging from a can of extra strong lager and urinating against the side of the vehicle.
Police were waiting at Market Place in Melksham with a relief driver and a supervisor from the bus company. The driver was breathalysed and arrested after being found to have 42mg/100ml of alcohol on his breath, above the 35mg/100ml limit.
The replacement driver took over the bus and continued on to Chippenham.
A spokesperson from Faresaver was approached for comment, but refused to confirm whether the driver had been suspended.