Manx Care has confirmed it was a vehicle fire which caused the main entrance of Noble's Hospital to be closed this morning.
The healthcare service says no one was hurt in the incident, which has now been resolved.
It adds the front entrance remains closed to vehicles, with a one-way system in place at this time, Tuesday, April 21.
However, patients and visitors can now use it again.
When will prom repairs happen?
Government wants views on ferry ID check plans
Tynwald to sit later this morning
Cost to use NSC for Island Games unknown
Applications open for arts bursaries
Douglas street to be closed for nearly a month
Star Wars to be celebrated with Island event
Cyber Security Centre warns of new AI tech