A British explorer who went missing in the Papua New Guinean jungle has been found "alive and well".
University of East Anglia alumnus Benedict Allen had gone travelling in an attempt to find the indigenous Yaifo tribe.
Mr Allen had not been seen since he was dropped by helicopter into the region three weeks ago without a mobile phone or GPS device.
He was hoping to reach the Yaifo, a tribe thought to be one of the last on Earth to have no contact with the outside world.
Mr Allen has now been reportedly seen near an airstrip and has requested rescue, according to the BBC security correspondent Frank Gardner.
"He has been reported alive and well," he Gardner told BBC Radio 4's Today programme.
"Tribal chiefs in the area that he went missing say that he has been sighted near an airstrip, that he's okay, that his health is fine, that he's requesting rescue.
"So efforts are now under way to try and bring him out."