The band postponed a gig at the Electric Ballroom in north London hours after it was due to begin and a spokesman told the audience the cancellation was caused by "a medical situation".

It led to speculation among fans that Doherty, who finally kicked heroin this year (15) after a 13-year habit, was back to his old ways, and even sparked a rumour he had fled to Paris, France, where he was living before cleaning up at a rehab centre in Thailand.

However, The Libertines gave an update on on Friday (11Sep15) to calm fans' fears, writing, "We can assure everyone that Peter is safe. Clearly this is a very private matter in many respects, but we also feel it necessary to let people know he is ok."

The band has also postponed a gig in Manchester, England, which was due to take place on Friday night.