A BBC investigation has found evidence Russian mercenaries have been operating in support of anti-government forces in Libya, in defiance of a UN ceasefire agreement.
Data from a tablet computer left by a Russian fighter indicates members of the Wagner mercenary organisation murdered civilians and subjected others to forced labour; actions which may amount to war crimes.
The findings were supported by interviews with Libyans caught up in the conflict.
Speaking to the BBC on condition of anonymity, one former Wagner employee said there were no clear rules and no documents regulating relations with the local population.
The service records of Wagner mercenaries also highlight the group’s involvement in other conflicts including Syria and Ukraine.