DUP MLA Jonathan Craig has condemned the blast in a busy area of Belfast city centre as "absolutely reckless".
UTV News reports him saying that there was "an explosion as the area was being cleared" and that it was a "miracle" if no one had been injured.
There is no confirmation of this from the police and there are no reports of any injuries, UTV says.
More top news
A British climber trapped on Mount Everest after the earthquake in Nepal has said rescuers face "a race against time" to reach his group
People who suffer from back pain may have closer links to their chimpanzee ancestors, according to researchers.
David Cameron will say the Tories are the party of the "grafters, roofers, retailers and plumbers" as he set out plans to help small firms