A New Zealander and two Australians are missing after the helicopter they were in is believed to have crashed in Papua New Guinea's least populated region yesterday.
The Bell 206 Helicopter, operated by aviation charter service Hevilift, was reported missing about 4.30pm when it was somewhere near the town of Wabag in the mountainous Enga Province.
New Zealand Defence Force Papua New Guinea advisor Lieutenant Colonel Richard Taylor said there were many commercial helicopter operators in the area at the moment helping to set up the country's general elections.
"There's a lot of helicopters up there flying ballot boxes and election officials around."
The NZDF has three helicopters operating in the south-west of the country, and the Australians have four, but these were not involved in the search at this stage, Mr Taylor said.