A former All Black who went missing in London has been found and has been taken to hospital.

Terry Lineen was supposed to catch a connecting flight to Edinburgh at Heathrow Airport late.

However he got off the plane before it took off and was left in the arrivals hall by airline staff.

He was seen on CCTV footage leaving the terminal.

Mr Lineen's daughter in law Lynne Lineen said in a statement that Mr Lineen was found in Twickenham around 7am local time.

She said he's believed to have been confused and walking the streets of London all night.

Mr Lineen has been taken to hospital with an arm injury - the member of the public who found him believes he may have been the victim of a hit and run.

He was bound for to Edinburgh to meet his son ahead of a Rugby World Cup holiday.