UPDATE 2-Cargo plane crashes in Congo with presidential staff on board

A cargo plane carrying presidential staff crashed in eastern Congo on Thursday, and all eight passengers and crew are feared dead, a presidential adviser told Reuters on Friday.The plane, carrying President Felix Tshisekedi's driver, a logistics manager and some soldiers, was headed from Goma to the capital Kinshasa and went off radar on Thursday afternoon, an hour after departing, a statement from the civil aviation authority said.The Russian embassy in Democratic Republic of Congo said on its