Police have arrested a 19 year old man after a so-called 'Killer Clown' incident at Brunel University in Uxbridge.
The online craze involves people dressing up as clowns in order to scare passers by, often filming the event and sharing it on social media.
Officers said the man is in custody at a police station in West London.
A student has died after falling from a building on Brunel University campus. Emergency services were called yesterday. The student's family has been told.