Four Chinese passengers and two French pilots were killed when their helicopter crashed in an oil field in southeastern Niger last week, authorities told AFP on Tuesday.
The accident occurred in the Diffa region on Friday as the helicopter was on its way from oil-rich Agadem to the Fachi oasis, Diffa prefect Inoussa Sauna said.
The wreck was found the next day after a search that involved the army and security forces, he added. The cause of the crash was not immediately known but an investigation has been launched.