FRENCH border authorities blocked a much-anticipated aid convoy to the Calais refugee camp yesterday, leaving thousands of vital donations stranded on the other side of the Channel.

The 250-vehicle mission planned to arrive in France this Saturday, but the Calais prefecture branded the convoy a “risk to public order.”

Campaigners have called on Prime Minister David Cameron to intervene so that the hundreds of tons of clothes, food and fuel can be safely delivered to the 5,000 people living in the camp.