Xinhua Asia-Pacific news summary at 1600 GMT, Sept. 16

SYDNEY -- At least 20 people have been killed as women, girls, the elderly and young boys rushed to escape heavy tribal fighting that has erupted near a gold mine in Papua New Guinea, local media reported.

The fight in the Porgera Valley in Enga province, home to one of the country's largest gold deposits, started last week when two factions of illegal miners fought among themselves and one faction killed two me