A DRIVER has been stopped by police after being caught undertaking cars at 120mph.

Road police were pacing a driver on the M74 near Bothwell over the weekend when they clocked the Ford Fiesta.

The driver allegedly overtook the unmarked police car at more than 100mph and then went on to undertake other cars at speeds of between 110mph and 120mph.

Officers stopped, charged and reported the driver who is now faced with disqualification and a fine.