A branch of McDonald's has cut down on anti-social behaviour by turning off the free WiFi and playing classical music.
There were 71 reports of crime in and around the fast food branch in 2017.
Police have also begun patrolling the restaurant in Shepherd's Bush, west London, and say they will be checking CCTV for bad behaviour to ban offenders.
Playing classical music as a deterrent has often been used to stop teens hanging out outside shops and in tube stations, but this is thought to be the first McDonald's to use the method.
Other measures which have been introduced to tackle the problem include using 'more proactive' security guards, removing free WiFi and bike racks and closing the upstairs area at night.