The Irish coastguard is involved in their second hunt for a missing helicopter in the space of two weeks.
Last night a search was launched for an aircraft which has gone missing over the Irish Sea, with five people on board.
It's reported the helicopter went down just after 4pm, which was en rout from Milton Keynes to Dublin.
The search operation is being coordinated in the Caernarfon Bay area of North Wales and has been partially suspended due to bad weather, but is expected to resume later.
More to follow.