Media playback is unsupported on your device Media caption Conor Macauley goes on the hunt for a missing monkey in 2013

Two monkeys have escaped from Belfast Zoo after giving their keepers the slip.

One of the lion-tailed macaques is being pursued near houses in the Ben Madigan Park area of the Antrim Road in north Belfast by zoo staff.

The other monkey has been spotted on the cliff face of the Cave Hill, but cannot be reached at present.

Previously, six lion-tailed macaques escaped from the zoo in October 2013.

Belfast Zoo has said they are tracking the movement of the animals.