INCREDIBLE footage shows the rare moment special forces’ helicopters carried out secret drop drills outside Tesco.
Soldiers were seen rappelling down in what appeared to be a training exercise in .
The helicopters had no tail numbers which means it is highly likely that the aircraft is Special Forces, belonging to the SAS or SBS.
Footage captured by locals showed the two choppers flying extremely low over a nearby and surrounding buildings.
A rope was then dropped down out of the side before soldiers began rapidly descending onto the rooftop in expert fashion.
Stunned shoppers watched on as the unique drills were carried out in broad daylight.
Other residents shared videos on of the two choppers flying around South .
Viewers on and other social media sites speculated that the choppers were part of “Blue Thunder”;.
While not officially named by the military, the term has becomeinformally associated with the SAS’s use of fast, stealthy helicopters.
These are often painted in dark or matte tones for urban assault scenarios, much like the choppers in the video.
The secretive helicopters do not show up on flight as its transponder is usually switched off or scrambled to help hide its location.
Other sightings have taken place in the north west area in recent days.
The Blue Thunder is coloured white on the base and dark blue on the top and is flown by 658 Squadron Air Corps.
Meanwhile, the Eurocopter AS365N3 Dauphin II is painted in civilian colours of blue and white.
A Blue Thunder chopper was spotted landing nearafter the 2017terror attack when eight innocent victims were murdered.
Nearby offices, including, went into lockdown as the area was sealed off.
Members of the SAS , said to be hunting for one of the attackers, carried out a forced entry into Southwark Cathedral.
The SAS have also been spotted on the UK’s streets after major terror incidents, such as thebombing in 2017.
Members of the SAS were sent to the scene to hunt for associates of evil bomber
