All 18 people aboard a plane that crashed in western Indonesia earlier this week have been found dead, officials say.

印尼官员称，本周早些时候在西部地区坠毁的一架飞机已经被找到，机上18人全部遇难。

The aircraft's body appears to be largely intact
The Casa C-212 plane came down in a mountainous part of Sumatra on Thursday, but bad weather and rough terrain¹ had hampered² rescue efforts.

The aircraft sent an emergency signal before disappearing from radar³. The cause of the crash is not known.

There were four children among the passengers.

"Two teams were lowered to the crash site and they have confirmed that all 18 people on the plane have died," Indonesia's search and rescue head Sunarbowo Sandi announced on television on Saturday.

He did not provide further details.

The aircraft crashed on Thursday morning near the North Sumatran village of Bahorok, about 70km (40 miles) from the city of Medan.

The plane's wreckage⁴ was spotted⁵ during aerial（航空的） surveillance shortly afterwards.

Indonesia relies heavily on air transport and has a poor aviation safety record.

In May, 27 people died when a passenger plane crashed into the sea off the eastern province of West Papua.