CLIMATE Camp is insisting protesters will not attempt to cross the boundaries at Heathrow - despite admitting an email was sent out encouraging protesters to bring smart clothes and "air hostess" uniforms to the camp.

Mark Bullock, managing director of BAA Heathrow, said: "I am extremely concerned by reports in the media that protesters are planning on disguising themselves as passengers in an attempt to gain access to terminals and disrupt the airport.

"As a consequence of these threats, I am calling on the Climate Camp organisers to guarantee that protesters will not take direct action that will disrupt passengers."

A member of the camp, Alfie Agius, from Liverpool, said: "The email was sent out to people telling them to bring smart clothes to the camp.

"It is just a visual thing to dress like pilots or an air hostess and we thought it would look striking if we were doing a carnival type march.

"But in no way is it a way of getting into Heathrow to cause harm to anybody."

The campers say their day of direct action, which is due to take place on Sunday, August 19, will be a peaceful one.