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JOHANNESBURG -- One man died and at least 48 people were injured after a suspected underground gas explosion ripped open roads and flipped vehicles in the heart of South Africa's biggest city, authorities and emergency services said Thursday.
Firefighters found the man's body found under a vehicle.
The cause of the blast at evening rush hour Wednesday in downtown Johannesburg remained unclear. The company that supplies gas to that part of the city said it did not believe its underground pipelines were responsible, as authorities first thought.
An investigation was underway as city authorities brought in specialists to determine what other underground pipes or cables there were in the area and if there was a threat of another explosion or gas leak.
"We are still searching for the source," said Panyaza Lesufi, the premier of the Gauteng province, where Johannesburg is located.