The BBC/ITN/Sky exit poll shows no one party with enough seats to form a majority. The Conservatives have done well, putting on almost 100 seats, but not well enough. But - if the exit poll is right - there are also not enough Labour and Lib Dem MPs to form a coalition majority either. Most importantly, however, the poll shows things to be on a knife-edge, and close enough so that any strange results could tip the balance. It promises to be one of the most exciting election nights in living memory.
The first three seats - the three Sunderland seats - have seen turnout rise by about 5 percentage points. If that is repeated across the country, overall turnout will remain below 70%. However, it is perfectly possible that turnout will be more variable, and the increase will be greater elsewhere.
Professor Philip Cowley