A man in China has been sentenced to three and a half years in prison after stealing electricity from a train network in order to mine bitcoin.
Xu Xinghua from Shanxi province pleaded guilty to stealing 104,000 yuan (£11,300), which was used to mine 3.2 bitcoins.
At the current price of bitcoin, Mr Xinghua's bounty would be worth around £15,000, however at bitcoin's peak, it would have been worth close to £48,000.