A teenage boy was forced to hide in the toilets of a McDonald's restaurant as he was chased by a group believed to be carrying knives, eyewitnesses claim.
Shocked onlookers reacted with fear and anger when the group were seen running into the Leyland branch of the American fast food giant on Monday evening.
According to one witness, one member of the group stole a man's car keys when he tried to intervene as they dispersed through the streets.