A sell-out Kings of Leon concert at The O2 arena has been postponed after two tour buses were destroyed in a fire.
The arena in Greenwich, south-east London, was not affected by the blaze but the time it took to assess the damage meant there was no choice but to call off tonight's show by the band, whose hit single Sex On Fire was number one for three weeks in 2008.
Six people needed treatment for smoke inhalation after the fire broke out in a loading area, leaving the buses gutted.
A spokeswoman for The O2 said: "Unfortunately, due to this morning's fire on board one of the tour buses at The O2, tonight's Kings of Leon concert will now be postponed.
"Whilst there is no damage to The O2 there is now insufficient time to rig the arena for tonight's performance. We are sorry for the inconvenience and we will announce a new date shortly."
An investigation into the cause of the fire is under way. About 60 firefighters were called to the scene at 8.18am. Some remain at the scene but the fire has been put out.
London Fire Brigade said The O2's sprinkler system successfully activated and this had helped firefighters bring the blaze swiftly under control.
Station manager Sally Cartwright, who was at the scene, said: "Our crews did a fantastic job, especially given the levels of smoke down here which led to quite challenging conditions."
Tickets to see the American rock band tonight had been sold out "months ago", a Kings of Leon spokesman said.