Police say it is unclear if 17 missing passengers are still alive or wounded, and may be hiding in bushes or sheltering with neighbouring clans

At least seven people were killed and more than a dozen remain missing after gunmen ambushed a public bus and shot passengers in Papua New Guinea’s Enga province.

The shooting took place in Enga’s Lagaip district on Tuesday afternoon. More than 20 passengers were on the bus when men armed with high-powered weapons “set up an ambush and fired shots indiscriminately” into the vehicle, highland western end assistant police commissioner Joseph Tondop said in a statement on Wednesday.