Fifteen people have been charged with wilful obstruction after campaigners against airport expansion staged a protest near Heathrow Airport.

A small group of people ran on to the M4 spur road and lay down in front of oncoming traffic, causing a temporary disruption on Saturday.

Scotland Yard said the 15 people are aged between 21 and 67 and have been bailed to appear at Ealing Magistrates' Court on December 22.