LONDON (Reuters) - With less than three days to go until Britain holds a national election, opinion polls suggest Prime Minister Theresa May's lead over the opposition Labour party has ebbed over the last two weeks, putting her majority into doubt.
Below are details of opinion polls before due before Thursday's vote.
* Due at 12:01 a.m. London time (2301 GMT/1901 ET)
* The poll was conducted before the London attack
* A previous Survation poll for the Mail on Sunday newspaper published on June 3 showed May's Conservatives on 40 percent, just one point ahead of Jeremy Corbyn's Labour Party
* Likely to be published on Tuesday, 3:30 p.m. (1430 GMT/1030 ET)
* The poll is likely to have been conducted after Saturday's London Bridge attack
* A Kantar poll last Wednesday showed May's Conservatives extended their lead to 10 points over Labour, up from 8 in the previous week
* Likely to be published on Tuesday evening, London time
* Likely to have been conducted after Saturday's attack
* An Opinium poll for the Observer newspaper on June 3 showed May's lead narrowed to six points compared with 10 the previous week
* Ipsos MORI polls for the Evening Standard newspaper have tended to run shortly after 11:00 a.m. London time (1000 GMT/0600 ET)
* The last Ipsos MORI published on June 2 showed the Conservatives' lead contracted to five points, compared with 15 points two weeks previously
* Likely to be published on Wednesday afternoon London time, but has sometimes appeared earlier.
* Last Thursday's Panelbase poll showed May's lead almost halved to eight points, compared with 15 points a week earlier.
* Likely to arrive to appear on Wednesday evening London, time.
* ComRes polls are among those showing the biggest lead for Theresa May. The last poll published on Saturday showed she had a 12-point advantage over Labour, unchanged from a week earlier.
* Likely to run late afternoon or early evening, London time
* Like ComRes, the ICM polls have shown sizeable leads for the Conservatives, albeit narrowing sharply from record levels around a month ago
* The latest ICM poll published on Monday showed May's lead slipped to 11 points, down one point from the previous week
* YouGov may publish another poll before Thursday's election.
* Its last poll on June 3 showed May's lead over the Labour party narrowed to four points from seven points a week previously
* A model-based projection from YouGov on Monday showed May is on track to win 305 seats in Britain's parliament in an election on Thursday, 21 seats short of a 326-seat majority
Reporting by Andy Bruce, editing by Larry King