Ammunition technical officers attended college premises in Northern Ireland on to assist with the safe disposal of a substance.
The incident occurred in Glengormley at college premises near Hightown Road.
Detailing the operation, a P.S.N.I. spokesperson said: “Police and A.T.O. attended college premises at Hightown Road in Glengormley on Monday, September 2 to assist with the safe disposal of a substance which had been stored in a laboratory at the college.
“The substance was examined, deemed not dangerous, then removed.”
There are no further details.