UKIP's Farage faces humiliation in South Thanet, claims Labour
A Labour source said Nigel Farage could come third in South Thanet.
He said: "On the boxes that have been opened, that's how it appears to us. The ward is Cliftonville East, which is a strong Tory ward that we haven't held for 30 years.
"We would expect Ukip to do well. The boxes, from what we have seen, are showing the Tories comfortably in the lead and Ukip behind that and Labour closely behind that.
"We shouldn't be competitive with Ukip in that ward. It's only one ward but we feel that Ukip are not going to win."
A Tory source said it was still too tight to call in South Thanet, while Labour's candidate Will Scobie was also reluctant to make predictions.
He said: "I haven't seen enough of the boxes. They are all over the place. The thing is it's so geographically-split that you could look at two boxes and they could tell you absolutely nothing."
Liberal Democrat Energy Secretary Ed Davey told Sky News: "We have got two different polls and they are saying very different things, not just about the Liberal Democrat vote but about where Labour and the Tories stand.
"What they both say is we are in hung parliament territory again. If you remember in 2010, the Liberal Democrats put the national interest above party interest. We knew going into coalition would probably hurt us, we would lose some valued colleagues and that may well happen tonight.
"But I think it is vital as we get the result in if we get another hung parliament, that all the parties act in the national interest."
He added: "I'm not pre-judging the outcome of the results. We have to await a lot of results to know if the YouGov poll is a better analysis of what is happening than the exit poll.
"What is clear from both of them is the Conservatives have not won a majority. Yet again they have failed to win a majority."
Heading to the count in South Thanet, Nigel Farage said: "My congratulations to the Daily Mail and the Sun, they're geniuses, they understand politics completely. They think the Ukip vote splits the Tory vote - God help us."
A Tory source said it was still too tight to call in South Thanet, while Labour's candidate Will Scobie was also reluctant to make predictions in the seat.