Ambulances were lined up outside Belfast's Odyssey Arena tonight as both the Northern Ireland Ambulance Service and Ulster Hospital declared a major incident involving around 60 young people.
The youngsters were said to be suffering from the ill-effects of alcohol and drugs - at varying levels of consciousness.
A spokesperson for the South Eastern Trust said they were aware of an incident involving a bus at the arena.
More top news
The signs were encouraging to commuters going about the transport network the day after a terror attack in Westminster.
Faith leaders from across London say religious communities will "stand together" in the wake of the Westminster terror attack.
Pc Keith Palmer was among the three people killed yesterday in the Westminster terror attack.