Al-Arabiya just posted this photo above on Twitter stating that Burj Khalifa in Dubai is on fire.
Many people tweeted other photos (below), some are even saying that people are being evacuated and sirens are being heard. Others are saying it’ only a rumor and the smoke we see is just fog.
I can’t decide whether it’s true or not. Some photos look like smoke and others look like fog :s
UPDATE: It was a rumor. Denied by the Dubai Police ( link )