12.13am: The polling fiasco seems to be getting more and more serious. In Chester Labour are complaining about 600 people not being allowed to vote, even though they were on the register. That could be significant because Labour has a notional majority of just 973 in the city.
There have been problems in Sheffield too. I'm told that students in Nick Clegg's constituency (many of whom were expected to vote Lib Dem) were also prevented from voting.
The Electoral Commission has said that it will undertake a "thorough review" of what has happened.
326 to win
Party Predicted seats Seats Change Vote %
5 0 27.3
1 0 17.2
0 0 19.0
Gordon Brown and his wife Sarah arrive at the Adam Smith College for the Kirkcaldy and Cowdenbeath count tonight. Photograph: Andrew Milligan/PA
1.02am: Paul Lewis has sent me this from the Brown camp:
Brown is about to deliver his speech. Downing Street aides say the PM will call for a "strong, stable and principled government" in times of economic uncertainty " they're saying that is shorthand for a coalition government, not a minority Tory government. It is the first sign from the PM that he will seek a coalition if exit polls are correct.
1.04am: Matthew Taylor, who has been monitoring the BNP, has sent me this.
Labour sources in Stoke, the BNP's second target seat, are also sounding confident and say the far right party may have been be pushed into third or even fourth place.
Election results " headlines
* Exit poll shows Con 305, Lab 255, LD 61
* Labour wins first three results, all in Sunderland
* Tories say Brown will have no right to form government if exit poll accurate
* Labour making coalition overtures to Lib Dems
* Hundreds of people prevented from voting in constituencies across the country
So where are we off to next?
The alleged voting irregularities will be an interesting story to watch.