A poll published by The Sun newspaper claims Ukip will win the European election, gaining 22 MEPs.
ITV New Political Editor Tom Bradby said: "It's only a poll, but it does look like we are facing a bit of a political earthquake - certainly a protest vote, the like of which we perhaps haven't seen."
According to the poll of 6,000 voters, both Ukip and Labour would send 22 MEPs to Brussels, while the Tories would secure 16 seats.
More top news
Storm Brian will track off into the north sea later tonight. Blustery tomorrow.
The Evening Standard airbrushed the singer's braids from its front cover.
The president of the Philippines has offered to shoot criminals while warning he may bring police back to his deadly war on drug addicts.