This is the moment a police officer tasered a 59-year-old man carrying a 'massive machete' after terrified commuters reported him running around a busy south London railway station at rush hour while 'ranting'.

The footage, taken by a train passenger and shared to Twitter, shows the machete-wielding man being subdued by officers on a platform at Tulse Hill station at around 6.25pm.

There were no reported injuries, although police later said that the man had been arrested on suspicion of attempted murder.

Footage filmed by a train passenger shows the man walking on the platform with the massive machete (left), before being confronted by a police officer (right)

Ironically, as the man writhed on the ground after being tasered by the brave officer, the station's safety announcement asking commuters to 'report anything that doesn't look right' can be heard.

The twitter user shared the video with the following comment: 'What the actual f*** is going on in London? Just witnessed a man at Tulse Hill station running around chasing people with a machete.'

People were heard 'screaming' after spotting the machete man during the evening rush hour.

Commuter Daniel Roberts tweeted: 'Women screaming and station in small chaos as a guy at Tulse Hill Station has just been tasered by police after running around with a machete.

'Must of had more than one weapon though as police seem to have multiple evidence bags.'

Jonewthan Yeary tweeted: 'Man with a massive machete wandering back and forth at Tulse Hill station ranting.

'Police have arrived, but may be worth avoiding the area.

'The train driver kept the doors shut, so big up @SouthernRailUK'

The brave officer tasered the machete-wielding man before several other police officers subdued him on the ground

Paddy PB tweeted: 'Awful drama at Tulse Hill station tonight, massive respect to the @TLRailUK driver who kept calm, shut the doors and kept us informed as the police did what they had to do.'

Dozens of officers swarmed the station in the minutes after the suspect was subdued.

Lawyer David Northfield said: 'Terrifying incident at Tulse Hill station where several of us had to run from a man wielding a machete.

'He has now been subdued by police - very grateful for them being there quickly and acting bravely.'

Brand and content manager Charlotte Wood described the incident as 'very frightening to watch.'

But she added: 'I am so impressed with the response by the police.

Police were forced to taser the man, with commuters saying he ran around Tulse Hill station in London with a 'massive machete'

'A total out of body experience. Well done to everyone that apprehended him..'

Ash New, who commutes into central London from Tulse Hill every day, said he arrived at the station on his way home after the man had been detained.

The 27-year-old, who lives a few minutes from the station, said he saw police officers with bags collecting evidence on the opposite platform.

He also saw a number of people who looked 'a bit shaken' as they were being spoken to by police.

He said: 'I think there was a lot of confusion. People were not really sure what was going on.'

Onlookers said the man around 'ranting' and he has now been arrested on suspicion of attempted murder

He added that he was shocked to see around a dozen police cars outside the station.

Conor Fortune said he was on a Thameslink train travelling away from central London at Tulse Hill station when he heard a male voice 'shouting quite loudly'.

The train conductor then told passengers not to get off because there was 'a dangerous man on the platform', he said.

The 39-year-old, from south-west London, said: 'After several minutes of being sat on the platform, the driver announced that we were being held and she shut the doors as a precaution, and advised nobody to get off as there was 'a dangerous man on the platform'.

'She informed us the police had been alerted and were responding.'

He added that he had been impressed by the train driver's professionalism and at the rapid police response.

Train drivers pulling into the station were praised for keeping the doors shut so the man couldn't get on board.

Police officers rushed to the scene after dozens of commuters took to social media to describe the machete-wielding man

British Transport Police later said in a statement that the incident is not believed to be terror-related

British Transport Police released the following statement this evening: 'Shortly after 6.30pm today officers from British Transport Police and the Metropolitan Police were called to Tulse Hill station after reports of a man in possession of a knife.

'Police officers were quickly on scene and detained a man on the platforms at the station. During the detainment a Taser device was discharged.

'The man (no further details at present) was arrested on suspicion of attempted murder and possession of an offensive weapon, he is being taken to custody. There are no reported injuries.

'Anyone who witnessed what happened is asked to contact BTP by sending a text to 61016 or by calling 0800 40 50 40 quoting reference 478 of 14/01/2019.

'This incident is not currently believed to be terror related.'