Rotterdam police have come into the possession of ‘death list’ pointing to a new and extremely violent internal gang war within the Dutch cocaine mafia, the NRC reports.

The names were handed to police by a witness in the inquiry of the murder in May of one of the people on the list, and who himself was also a target, sources close to the investigation told the paper.

Some 18 names appear on the list, including that of a public prosecutor involved in an investigation into the compiler of the names, an Iranian national known only as Ali.

Ali acted as a caretaker for the millions stashed away in Dubai by Dutch drugs lord Roger P but went on to steal some €100m of the cash, the paper said. He was subsequently kidnapped after which part of the money was returned, police have since confirmed.

P is currently in jail for his part in large scale cocaine smuggling operations, mostly from Costa Rica, earning him the nickname Piet Costa. P is also seen as the man behind a torture chamber which was discovered this summer in a shipping container in the Brabant village of Wouwse Plantage. Based on intercepted EncroChat messages police think P meant the torture chamber for Ali and others.

Thanks to the successful police hack, dozens of people in Roger P’s gang were apprehended.

However, that does not mean the conflict is over, the NRC said. Ali is thought to be in Dubai and other rivals of P are still at large as well. A shooting in Breda in October and a hand grenade left on the intended victim’s doorstep may be related and are being investigated, the paper said.