Police officers on duty at the Narcotics Base discharged a firearm at two persons who entered the compound late Wednesday night.

iWitness News was reliably informed that two unidentified persons, dressed in dark coloured clothing, entered the base at Arnos Vale.

They are said to have been behaving in a suspicious and threatening manner, triggering the reaction by the police officers on duty.

It is not clear if the police were able to apprehend the persons.