Dublin Bus say that passenger safety is their number one concern, after a wheel fell off a bus in Dublin city centre during the week.

The wheel came off the 15B bus at Butt Bridge, close to Liberty Hall, on Tuesday afternoon.

Dublin Bus say their drivers carry out visual checks on buses every morning.

They also say there are trained checks every four weeks, as well as checks using torquing equipment every 25,000 kilometres.

The company say that this is a completely isolated incident and an investigation is underway.

Photo courtesy of The Journal.ie