image source: bbc.co.uk
A stowaway who is believed to have clung on to a plane has fallen to his death, while another is in hospital.
The two men are believed to have been clinging to a British Airways flight from Johannesburg to Heathrow.
The victim was found on the roof of a building situated in London's Richmond area at about 0935h BST on Thursday. Police said his death was being treated as unexplained.
The man who was injured is in a critical condition in hospital.
The area Police said it could not confirm if the two cases were linked.
In a statement, the force said: "At this time there is no evidence to link the death to the discovery of a stowaway in the undercarriage of a plane at Heathrow Airport; however this is one line of enquiry into identifying the deceased and the circumstances of his death."
The surviving man, who is believed to be aged 24, was found in the undercarriage of the plane at about 08:20 BST and taken to a west London hospital.
Officers believe they know his identity but are awaiting confirmation.
The 5,600-mile journey (9,012km) from South Africa to the UK usually takes about 11 hours.
- BBC