Labour MP Chris Bryant has said cabinet ministers Therese Coffey and Jacob Rees-Mogg were among a group of senior Tories who were putting pressure on Conservative MPs to vote against the Labour motion on fracking.
Mr Bryant told Sky News that one MP, Alex Stafford, had been "physically manhandled" into the "no" lobby.
"There was a bunch of Conservative Members obviously completely uncertain whether they were allowed to vote with the Labour or against it," he said.
