Update: Kings of Leon have officially postponed tonight's show.
Two tour buses parked in a loading bay of the O2 Arena in London caught fire early Tuesday morning, possibly jeopardizing a Kings of Leon show scheduled for the venue later in the day.
Six people were treated for smoke inhalation at the scene, which drew 60 firefighters and 12 fire engines and resulted in the venue's evacuation.
According to a page on the venue's website, load-in for the show has started, but has been temporarily halted in order to assess water damage.
The concert is started to start at 6:30 p.m. GMT (1:30 p.m. ET). Tonight's show is scheduled to be Kings of Leon's last concert until March 2011, when they visit Australia and south Africa.
Kings of Leon - Update [The O2]
Fire breaks out in 02 arena loading bay [Guardian]