Neighbours has released a new promo teasing a huge disaster in Erinsborough. 

The clip shows an accident occurring at the backpackers hostel when a vehicle crashes through the building, trapping Piper Willis beneath the rubble.

But the big story is the fate of David Tanaka - he's rushed into hospital as twin brother Leo anxiously awaits word from the doctors about his condition.

It seems there's uncertainty around how the accident occurs, with copper Mark Brennan vowing to find out who is responsible and several characters looking guilty. So who causes the crash carnage? And will any Ramsay Street residents be killed off?

The disaster airs on Monday 1 May on Channel 5.