Lily Allen has had her American work visa revoked.

The singer was traveling from to the US from Australia when she was detained for five hours by customs and immigrations officials. US officials were concerned by a police caution relating to an alleged altercation with a photographer in London in May.

“It is my intention to play my American dates in September. This depends on the authorities granting me a new work visa.

“I want my fans to know that I will do everything I can to be back in September. I don’t like letting my fans down and this is a situation I am sure we can sort.”