A Metropolitan Police officer has been crawling the London Marathon in a gorilla costume since the race began on Sunday morning.

Tom Harrison, who goes by the name Mr Gorilla, is raising money for the Gorilla Organisation and has yet to complete the 26-mile race.

The 41-year-old Londoner started at 10.34am on Sunday. By lunchtime on Wednesday, he had reached Rotherhithe station - about 11 miles into the course.