Police in Leicestershire said motorists were delayed by traffic jams around Castle Donington as a result of the Renault World Series.

Tens of thousands of people attended the annual event.

Traffic on the A453 was at a standstill on Sunday morning as some motorists left their cars to walk to the airport.

An eyewitness said some people with flights to catch were leaving their cars and walking at least a mile to the airport.

Nose-to-tail

"The traffic is nose-to-tail along the whole stretch of the A453 that runs alongside the M1 towards Donington and the airport," said BBC correspondent Anthony Bartram.

Lee Gill of Donington Ventures Leisure, which runs the race venue, said they were working with the police to deal with the traffic problems.

"We have opened up more entry sites into the (race) park this year," he said but added the main infrastructure problem was caused by thousands of cars arriving at the site.