A Major Emergency Plan has been sparked at Letterkenny University Hospital as a result of an explosion at the Applegreen Service Station in Creeslough, Co Donegal.
It is understood that a number of injured people and are now being treated at the hospital.
A spokesperson for the hospital said "Letterkenny University Hospital is dealing with a serious incident, with multiple injured people requiring immediate attention.
"The hospital has moved to Major Emergency Standby as it deals with this incident.
"We are appealing to the public not to come to the Emergency Department unless it is an emergency. Please contact your GP or NOW doc service in the first instance.
"NowDoc has increased staffing this evening to help deal with any additional demands."
The explosion has resulted in a major collapse at the premises - pictures show the extent of the damage.
A number of cars have been damaged as a result of falling debris.
The main part of the building which also contains apartments have been severely damaged.
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