A man claiming to be the Russian Batman has been captured on camera walking from a drug den and leaving dealers for police.

The masked vigilante, who wears a Batman costume and calls himself the Jnec Grim Reaper, has declared war on drug dealers doing business in the Khimki area outside Moscow.

So far, he claims to have captured 40 criminals and closed down a host of illegal drug labs.

The Reaper's exploits started in June when a taxi driver witnessed a man dressed as Batman entering a building that later proved to be a drug den in the middle of the night, according to Krypton Radio.

The driver told police that he had heard people screaming and things being thrown around inside.

When the mysterious man then walked out, he threw a fire bomb at the ground disappeared into the night, captured by the witness known only as Slava.

With the Moscow Batman deep submerged in the Russian night, a few minutes later police arrived

Slava said officers walked out with two men in handfcuffs, who had been beaten up 'pretty badly'.

Gotham: Police said to have arrested two suspected drug dealers minutes after the Russian Batman was filmed leaving the building in a puff of smoke

Vigilante: The caped crusader has asked the public to help him out by sending tips to his Twitter account so he can mimic the real thing (pictured)

The caped crusader has asked the public to help him out by sending tips to his Twitter account.

Начало положено — Jnec Grim Reaper (@JnecReaper) May 26, 2016

In a letter to a local newspaper, which he also sent to the local police according to Krypton Radio, he said: 'You don't know me, and it is unlikely you have heard about me,' Reaper writes in his letter.

'I call myself Reaper, and for the past six months I have been struggling with the disease that has long been plaguing our society – crime.

'I fight drug dealers, rapists, and gangs. I don't kill or cripple, and I am not against the police or authorities, but I do root out the evil that police and the authorities can't reach.'

His first post on Twitter was on May 26 this year when he posted 'a start has been made'.

In true vigilante fashion, he has amassed 70 followers and follows nobody.