Post-mortem to be done on stowaway

Acsa says the incident is severe and it's reviewing security at airports to identify any weaknesses.

A British Airways’ A380 flying over Cape Town. Picture: Supplied.

JOHANNESBURG - British authorities say a post-mortem examination will be held in due course while inquiries are ongoing to establish the identity of a suspected stowaway who survived an 11 hour flight by clinging to an aircraft.

On Wednesday two stowaways managed to fly to London from Johannesburg by sneaking onto the undercarriage of a British Airways flight.

One man reportedly plunged to his deat h on Thursday as the plane approached Heathrow Airport.

The second suspected stowaway is reported to be in a serious condition in a London hospital and is being treated under police guard.

They apparently had to withstand temperatures as low as 50 degrees below freezing point for 11 hours while clinging to the Boeing 747.

Authorities are hoping the suspect who survived will be able to provide insight into the reasons behind the drastic measure to leave South Africa.

Airports Company of South Africa (Acsa) says the claims are severe and that it's reviewing security at South African airports to identify any weaknesses.

Police also confirmed that they have been roped in to probe the allegations.

Acsa's Collin Naidoo says the incident is a tragedy.

"Airports South Africa is working with the police, British Airways and the authorities in London, we will fully investigate the matter."

Acsa says it takes the claims very seriously and has admitted that this is a security related matter.