Stephen Kinnock accused the Prime Minister of wanting to convert the country into an “elective dictatorship” where there was “no opposition”.
Speaking on the BBC, the MP for Aberavon said Mrs May was being controlled by a “cabal of Brextremists” whose goal was to turn the UK into a European style Cayman Islands.
He said: “Theresa May stood on the steps of Downing Street today and said she wanted a united Westminster.
“I found those words to be quite chilling actually because that seems to suggest that she wants to turn our country into some kind of elective dictatorship where there’s no opposition in Westminster, where the government isn’t held to account, where they steamroll a Brexit through.
Stephen Kinnock said Theresa May's General Election announcement was "quite chilling"
She’s being run by a cabal of Brextremists around her who want to turn this country into a European version of the Cayman Islands
“She’s being run by a cabal of Brextremists around her who want to turn this country into a European version of the Cayman Islands using Brexit as a vehicle for doing that.”
Mr Kinnock added the public should vote for Labour to put a “strong opposition” to Theresa May’s vision.
Politicians react as Theresa May calls snap general election on June 8 Tue, April 18, 2017
UK Prime Minister Theresa May has announced her intention to hold an early general election on June 8
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Theresa May has called for a snap general election
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Mr Farron said: "This election is your chance to change the direction of our country.
"If you want to avoid a disastrous hard Brexit. If you want to keep Britain in the single market. If you want a Britain that is open, tolerant and united, this is your chance."