Update - 25 May 2014
The two men arrested in relation to Friday's incident have since been charged with attempted murder and possession of a firearm with intent to endanger life. This is in relation to shots fired at NCA officers.
A 44-year-old man was arrested a short time later by Metropolitan Police officers. He has subsequently been charged with possession of an offensive weapon.
Detectives from the MPS Trident Command are leading the investigation. Anyone who witnessed the incident, or has information that may assist the investigation, should call the incident room on 020 8217 7355. To remain anonymous, call Crimestoppers on 0800 555 111.
24 May 2014
During an incident in Haringey, North London, on the evening of Friday 23 May, firearms were discharged by NCA officers.
We are not aware of any injuries relating to the incident. NCA officers arrested two men and inquiries continue.
We have notified the Independent Police Complaints Commission (IPCC) of the matter, and they are conducting assessments.