Cycling outfit Team Sky has apologised to an amateur cyclist after its team bus just about avoided a collision with him.

Andy Rolfe posted footage on Twitter of the coach coming within a few feet of him on a narrow road.

It is not clear where the incident took place, but the bus was supporting riders on the Tour of Britain, which started today in Aberdare near Merthyr Tydfil.

Team Sky says the actions of the bus driver were "unacceptable".

"What is shown in the video is unacceptable and we are sorry," they said.

"We've already spoken to the driver and we'll be discussing this with him again in more detail. We will also be speaking to all staff and reminding them of their responsibilities."

Team sky's bus almost taking me out, sorry about the language, but this needs to go viral for the safety of cyclists pic.twitter.com/nmojiJnoXf

— Andy Rolfe (@AndyRolfe65) September 8, 2016