Disturbing videos have emerged of youths fighting with machetes outside a Starbucks on an east London high street. One thug, dressed in all-black clothing, is armed with two long blades. But he is ambushed from behind by another youth who attempts to strike him on the back of the head with a machete, but slips and falls to the ground. As women and girls scream, he gets back up on his feet and - with an accomplice - chases their indented target down Kingsland High Street, Dalton. The incident is said to have happened on Wednesday afternoon and involved at least six individuals. The Metropolitan Police have been approached for comment.