An Oyster card scammer from Hoxton who helped swindle £370,000 in illegal refunds has been jailed for 18 months.

Oliver Kassrongo of the Provost Estate was one of six men behind the fraud, in which hundreds of “first generation” Oyster cards were cloned in Hong Kong.

The cards, which have now been replaced by newer, more secure versions, were being used repeatedly at ticket machines to get multiple refunds.

The gang had 16 people across London making £10 and £13 every time they carried out the scam.

Kassrongo, 19, pleaded guilty to conspiracy to commit fraud by false representation.

Remy Rankin, 27, of Hatfield, Nathan Jeffrey-Payne, 28, of Ilford, Prince Henry, 28, of Wood Green, Jahmai Turner, 30, of Tivoli Road, Hornsey and Brandon Massia, 19, of Barnet were also jailed.

Det Con Jon Butterwick from the Cyber Crime Unit, said: “This was a large operation run by an organised crime gang which brought in hundreds of thousands of pounds for the offenders.”