JOHANNESBURG (CNN) -- Thieves scaled down a rope into a stadium in Johannesburg after it hosted a Justin Bieber gig to steal the contents of a walk-in safe, South African police said Tuesday.
Employees had put the money in the safe after the concert at Soccer City stadium in Johannesburg on Sunday night, said Lt. Col. Katlego Mogale, a spokesman for Gauteng police.
When they came in Monday morning, they found the safe had been broken into and "millions of rand" stolen, Mogale said. One million rand is nearly $110,000.
"The intruders broke through the roof of the bathroom nearby and there is evidence that they gained entry by abseiling down to gain access to the strong room," Mogale said.
Police are studying closed-circuit TV footage Tuesday for clues as they investigate the theft, he said. Mogale said it was a break-in rather than a heist, as some media have reported.
Soccer City, also known as the FNB Stadium, hosted rocker Bon Jovi on Saturday night before welcoming pop star Bieber on Sunday night.
"That was a show! 95000 strong! #SoldOutStadium . Thank u Johannesburg!" Bieber tweeted after the concert, the last stop on his international "Believe" tour.
"Great way to end this leg of the tour. Excited to chill for a bit but I will announce Australia, Asia, and S America real soon," he added.
Soccer City, with a seating capacity of almost 95,000, is the largest stadium in Africa. Several of the 2010 World Cup soccer games were played there, including the final.
-- CNN's Kim Norgaard reported from Johannesburg and Laura Smith-Spark wrote in London.
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