Theft Description

It sits on the neighbors driveway under cover and with a chain next to my partner's bike. Woke up this morning and it was gone, the chain's lock had been cut through. Recordings from a camera across the street show the thieves to be two younger men in full black clothing - hoodies and balaclavas. They also came back the night after to attempt to steal my partner's bike, this time in a trio, with another man wearing a hoodie with a white stripe across the top, and a white helmet. These thieves are also presumed to have stolen another bike in the area (A red Lexmoto moped). EDIT: New pictures have been attached showing the perpetrator(s). The suspect clearly has a big gold ring on his right hand. Please contact South Yorkshire/ Doncaster police if you see this bike, or the suspects around (or know them). Thank you!