Police are investigating a report of shots being fired in the Bogside area of Derry last night.
Shortly before 11.20pm they received a report of a number of loud bangs being heard in the area.
At around the same time, a third-party report was received about possible shots being heard in the area.
Police say enquiries continue to establish exactly what occurred and to confirm if any shots were fired.
Anyone with information, or who may have captured footage which may assist, is asked to contact them.