The world's tallest skyscraper - Dubai's Burj Khalifa - has just closed to the public, a month after being opened.

It's unclear why it is being closed, but the company that runs it has mentioned electrical problems.

In a brief statement responding to questions, building owner Emaar Properties blamed the closure on "unexpected high traffic," but then suggested that electrical problems were also at fault.

"Technical issues with the power supply are being worked on by the main and subcontractors and the public will be informed upon completion," the company said, adding that it is "committed to the highestquality standards at Burj Khalifa."

Ervin Hladnik-Milharcic, 55, a Slovenian writer planning to visit the city for the first time this month, said he hoped the Burj would reopen soon.

"It was the one thing I really wanted to see," he said. "The tower was projected as a metaphor for Dubai. So the metaphor should work. There are no excuses."