A man is in custody after police responded to an alleged threat at IMP Aerospace at the Halifax Stanfield International Airport Thursday morning.

Police say they received third-hand information early Thursday about a potential threat involving an individual with connections to the Halifax Stanfield International Airport community.

Halifax Regional Police and the RCMP responded to the scene; the building was evacuated and employees were told to go home at 5:30 a.m.

IMP Aerospace tweeted around 7 a.m. that, due to unforeseen circumstances, operations had been suspended and the plant would remain closed until 10 a.m.

Operations have since resumed at IMP Aerospace.

Police say a 48-year-old Dartmouth man is being interviewed and investigators are trying to determine the validity of the alleged threat.

The RCMP has increased its presence in and around the airport as a precaution, but police say airport operations are not impacted by the incident.

IMP Aerospace, which repairs military aircraft, laid off 44 workers earlier this week.

A spokesperson said it is expected to be a short-term layoff.