Numerous police, fire and emergency personnel from surrounding cities came to the area to begin search-and-rescue efforts so many that authorities publicly asked additional crews not to come because of overcrowding.

WSJ: Fertilizer-Plant Blast Kills Five to 15 in Texas

An RAF Search and Rescue helicopter was sent to scour the area.

BBC: Arbroath Cliffs

The government says the new deal means helicopters "will be able reach a larger area of the UK search and rescue region within one hour of take off than is currently possible".

BBC: Bristow S-92