Police in Stockton were tonight dealing with an "ongoing incident", believed to involve a firearm, in the area of the town's Makro store.

Reports of the incident started coming in at about 6.45pm this evening.

The exact nature of the incident was unknown but eyewitnesses said a police helicopter was hovering overhead and a police officer was heard to give an order to "put the gun down and step away."

For updates see The Northern Echo website through the evening.