After sightings of "killer clowns" were reported across the country, the extraordinary phenomenon has reached west London, sparking a response from the Metropolitan Police.
The London commander with the Met, Julian Bennett, has said the incidents can "leave people feeling scared, anxious and intimidated" and said they are currently looking into reports.
Commander Bennett added that sightings are likely to increase throughout October.
A distressing image appeared on social media of a clown appearing to carry a chainsaw at Brunel University .
Three possible crimes
Commander Bennett said: “We are currently assessing a small number of reported 'killer clown' incidents in London, three of which meet the threshold of a criminal offence.
“Anti-social behaviour can leave people feeling scared, anxious and intimidated and I would urge those who are causing fear and alarm to carefully consider the impact their actions have on others.
“In the run up to Halloween it is expected that these types of incidents will increase but with the launch of our annual Autumn Nights campaign in the coming weeks Safer Neighbourhood Officers working in partnership with other agencies will be carrying out additional reassurance patrols and will be on hand for those who are especially vulnerable during this period.”
Based on horror story
The bizarre trend is believed to have started in the US and is thought to be influenced by Stephen King's horror classic, It.
Commander Bennett said the police's primary responsibility is to identify and investigate the incidents where a criminal offence occurred, but did not say what those criminal offences were.
He added: “While we do not want to stop people from enjoying themselves it is important that while having fun they remember to act in a responsible manner and understand that they could be prosecuted if a criminal offence is committed.”
