A series of shootouts between rival tribes over a disputed gold mine has left at least 30 people dead in Papua New Guinea, police said on Monday. Security forces have been given emergency powers to stop the fighting - including the use of "lethal force" - according to the country's police commissioner.

Barrick Gold has suspended operations at its Porgera gold mine in Papua New Guinea until Thursday after tribal violence in the region killed at least 20. Papua New Guinea has granted police emergency powers,

At least 20 people have been killed in heavy fighting that has erupted between two tribes near a <a target=_blank href=https