The Conservatives have lost control of their only council in Wales as the party suffered heavy losses.
Monmouthshire was the only local authority held by the Tories, which now falls to no overall control.
Labour has become the biggest party with 22 seats. The Tories lost 12 seats, and the Green party gained one.
Elsewhere across Wales, Labour gained two councils and Plaid Cymru one.
Labour held its majority in Cardiff, considered a key seat, alongside Swansea.
It comes after a tough night for Boris Johnson across Britain as the Tories sustained losses across England and fell to third place in Scotland.
Richard John, the Conservative leader of Monmouthshire, said the results would create a "hard pain" for the party.
Councillor Adrian Robson, leader of the Conservatives in Cardiff Council, said MPs need to decide whether to keep Boris Johnson on as Prime Minister or face more election losses.
"Conservative votes are splitting all over the place. I think the MPs in Westminster need to make a decision and decide what that decision is," he told WalesOnline.
"It’s not up to me to say who the Prime Minister should be. It’s for the MPs to get together and say right, we're going to back the current Prime Minister and come up with a strategy for how we’re going to win the General Election, how we’re going to win the Senedd election, and how we’re going to win local elections in Wales.
"If they decide they can’t do that, then they need to make the change but we can’t have another two years of what we’ve had because that’ll just mean we’ll lose the general election and continue to haemorrhage councillors."
The 2022 results are not yet in for all Welsh councils, including Flintshire which will be a test of Tory popularity in an area in which they did well at the 2019 general election.
This year's council election will mark the first in which 16 and 17-year-olds have been allowed to vote in Wales.
