Initially reported on the Airside NI FB page but this is a follow-up from the UFC FB page:
Incident at EGAD (https://www.facebook.com/photo/?fbid=10161459958357523&set=gm.3691174644524924&idorvanity=1416892595286485)
Doesn't sound too serious.
Initial article posted on Belfast Live (https://www.belfastlive.co.uk/news/northern-ireland/live-emergency-services-attend-incident-31354153)