Gugu Zulu's family set to travel to Tanzania to probe exact cause of death

The racing car driver was due to summit today when he experienced breathing problems.

Renowned South African racing driver Gugu Zulu and his wife Letshego posing for a photo at the O.R. Tambo International Airport in Johannesburg on 13 July 2016 ahead of their trip to Tanzania. Picture: Facebook.

JOHANNESBURG - Gugu Zulu's sister and a representative from the Nelson Mandela Foundation will be meeting doctors in Tanzania this evening to establish the exact cause of his death.

Zulu's uncle, Tsidiso Motloelwa, confirmed that his sister is now en route to Tanzania.

Motloelwa says the family would like to thank the public for the messages of condolence, which he says have been comforting.

Zulu died this morning at around 5am after attempting to climb Mount Kilimanjaro with his wife and a team for Mandela Day.

The climbers were due to summit today to the initiative, which raises funds for disadvantaged schoolgirls.

Gallery: Celebrating the life of Gugu Zulu

Zulu's friend, Thebe Ikalafeng, says he's devastated.

The brand specialist was one of the last people to see Zulu before his death.

Ikalafeng says his friend didn't look well on Saturday.

"To be fair, I don't think he was well. I had two parting words with Gugu; on Saturday morning after breakfast, I said to him Gugu there are two things that are going to get you to the top. You must have the right mental attitude because you are going to need the strength, and the second thing I said was you must take care of the altitude."

Listen Gugu Zulu's last interview with Radio 702's Sam Cowen