Athletes competing in the Paralympics have begun jetting into Britain in large numbers, on what is expected to be the busiest day at Heathrow airport in the runup to the Games.

A spokesman for the airport said about 200 people, including around 80 wheelchair users, arrived on Wednesday morning, with a total of 2,100 Paralympics competitors and delegates expected throughout the day. Despite a nearby fire causing delays of 15-20 minutes in the first two hours of the day, he added, Paralympian arrivals were progressing “very smoothly”.