Fire crews targeted by youths with fireworks as Halloween call-outs soar
They also had to withdraw from incidents in Rostrevor and Newry because of hostile crowds on Monday.
There were no reports of any injuries.
NIFRS said it was the busiest Halloween in six years with a 47% rise in the number of calls compared with last year.
Advertisement
Hide AdAdvertisement
Hide AdMost of the 166 incidents attended by firefighters were started deliberately. Many involved grassland and bonfire materials including tyres.
A total of 232 calls were received from across the region.
An NIFRS spokeswoman said: “This equates to an increase of 47% on incidents attended during Halloween 2015 and represents the busiest Halloween period since 2010 in terms of both calls received and mobilised incidents.”