David Cameron has called the BNP's European election gains 'desperately depressing'.
The Tory leader said: "It is desperately depressing. It is obviously a depressing day, for all of us. The BNP are completely beyond the pale.
"They do not even let black and Asian people into their party, they are an appalling bunch of people. It is depressing.
"What the mainstream parties have to do is prove their worth, get on the doorstep, explain to people how we are going to take up their concerns, how we are going to respond to their issues.
"That is the way to beat these dreadful people. I hope that this is the extent of what they can do and they go no further."