A Welsh MP claims cases include workers with the NHS and in care homes.Read more
Change compared with 2017
BBC Wales politics reporter
It's been a very bad night for Labour, and a very good one for the Conservatives in Wales - with the former almost wiped out in the north east.
The Conservatives didn't take everything it had its eyes on - Gower and Cardiff North saw Labour candidates fend off their Tory rivals. But the party scored historic gains in many of its target seats - six have turned from red to blue.
Labour does have more than half of Wales' 40 MPs, at 22, but they are almost entirely are concentrated in the south Wales.
The result is the biggest challenge to Labour's dominant position in Welsh politics since the 1980s, and it is the Conservatives' biggest achievement in Wales since the days of Margaret Thatcher.
It puts the party in a decent position for the 2021 assembly elections - although they're a different kettle of fish. Former Welsh Assembly Tory leader Andrew RT Davies has warned against reading one poll into another.
How did Plaid Cymru fare? They will be disappointed the party could not take Ynys Mon where the Remain pact failed to bear fruit.
Plaid has not gained any ground, but has held all four of its seats in a campaign dominated by the two major parties.
And the Liberal Democrats? Jane Dodds left the Brecon and Radnorshire by-election count triumphant in August. But with no Brexit Party opposition she has been ousted by the Conservatives, leaving the party with no seats in Wales.
Tonia Antoniazzi has been re-elected as the MP for Gower, with a significantly decreased majority.
The Labour candidate beat Conservative Francesca O'Brien by 1,837 votes, 1,432 votes less than the majority at the 2017 election.
John Davies of Plaid Cymru came third and Liberal Democrat Sam Bennett came fourth.
Voter turnout was down by 1.3 percentage points since the last general election.
More than 44,000 people, 72% of those eligible to vote, went to polling stations across the area on Thursday, in the first December general election since 1923.
One of the five candidates, Rob Ross (The Brexit Party) lost his £500 deposit after failing to win 5% of the vote.
This story was created using some automation.
Labour sources in Gower are saying it's "too close to call".
A Labour source has told the BBC to "get ready for a long night" as there may be recounts.
Labour candidate Tonia Antoniazzi has recently arrived at the count.
Welsh Conservative chairman Byron Davies, who lost the seat to Tonia Antoniazzi in 2017, also said the constituency was looking "close" but that the party was "very encouraged by what we have seen so far".
"I think people just want Brexit done. It's what people have been telling us," he said.
Bridgend - 66.9%
Caerphilly - 63.8%
Ogmore - 61.6%
Aberconwy - 71.6%
Pontypridd - 65%
Neath - 65.4%
Swansea West - 63%
Swansea East - 57.6%
Gower - 61.7%
Dwyfor Merionnydd - 67.7%
Gower Labour candidate Tonia Antoniazzi has retweeted a fellow Labour candidate criticising party leader Jeremy Corbyn.
“Every door I knocked on, and my team and I spoke to 11,000 people, mentioned Corbyn. Not Brexit but Corbyn. I’ve been saying this for years,” Ian Murray said.
She added: “This, every day, every session...”
Labour campaigners said they are worried about Gower after seeing the exit poll. The party's Tonia Antoniazzi was the MP for the constituency in the last parliament
They say they've had a "very mixed" reaction on the doorstep.
Lots of traditional Labour voters in areas like Gorseinon, Loughor and Pontarddulais have been telling them they were voting Conservative because of "Corbyn and/or Brexit".