Armed police spent more than seven hours in a stand-off with two men who fled onto a rooftop when officers suspected them of tampering with a motorbike.
Footage from the incident shows the duo on the rooftops in Kingsgate Road, near Kilburn, northwest London, throwing roof tiles at police below.
The Met have now confirmed two men are in custody at a London police station.
Police were alerted to two men at around 5pm and approached the duo who fled and climbed onto the roof.
More than a dozen police officers were thought to have be at the scene and a helicopter was assisting after a member of the public reportedly saw one of the men carrying a gun.
Earlier an eyewitness, told MailOnline: ‘Apparently it is a suspected burglary gone wrong and when police approached them they got up on the roof and started ripping off roof tiles and throwing them at the police.
The two men were seen on the roof throwing roof tiles down onto the street below
A number of armed police are at the scene after a member of public said they thought one of the suspects was carrying a gun
One of the men (far left) can be seen traversing the rooftops of the residential street in Kilburn this evening
Armed police have been surrounding the area, where the two men are located, since around 5pm yesterday evening
The men both have their faces covered and were seen throwing tiles at police on the street below
A helicopter is assisting Met Police with the ongoing incident in Kilburn, northwest London
‘I saw one of the men with what looked like a knife, or could be a piece of roof tile, making stabbing motions towards the police.
‘The man walking around on the mobile phone said ‘I want to die’ and seemed completely out of it.
‘He was on the phone the entire time. I’m not sure to who.
‘The two of them somehow found some chairs from somewhere and were collecting glass and other roof tiles and ripped up a Velux window.
‘There are a lot of armed police there at the moment and a large area has been cordoned off, we were told someone might have a gun.’
Police were alerted to the men at around 5pm after they were suspected of tampering with a motorbike
At the start of the clip one of the men can be seen traversing the rooftops while his friend sits on a raised part of the roof – a helicopter can be heard overhead.
One of the men is shown repeatedly hitting a part of the roof, with what looks like a roof tile and the other then appears to be trying to set something on fire with his lighter.
Then a suspect launches what appears to be a roof tile at officers below.
Cordons and road closures were in place.
A spokesman for the Met Police said: ‘At 17:11hrs on 26 March police observed two males seen tampering with a motorcycle in Mazemot Avenue, NW6.
‘They were challenged by police and fled, making their way onto the roof of a nearby building in Kingsgate Road, where they currently remain.
‘A member of the public reported seeing one of the men in possession of a firearm. This has not yet been confirmed.
‘Specialist firearms officers are in attendance as a precaution. No arrests. Cordons and road closures are in place.’
It is believed the council are opening Swiss Cottage leisure centre for people affected by the incident to sleep in overnight, reports the Camden New Journal.