AN MP has come under fire on social media after calling a Labour supporter a “d**k”.

Robert Syms, who was re-elected as MP for Poole, has been called out for his “shocking” reply to a Twitter user from Liverpool, @youlittlequilt, who wrote: “Sinn Fein are saying that the Tories are in breach of the Good Friday Agreement by forming a coalition with the DUP – and they’re right, too”.

Mr Syms replied to the Tweet yesterday afternoon, saying: “It’s not a coalition, you d**k”.

The response has provoked an outcry from numerous people online, including Poole Labour Party.

They tweeted: “So @RobertSyms wins a few days ago and is now speaking to the public like this? Not acceptable as a public servant.”

Poole resident Liam Toms said: “I suspect this is in breach of the Conservative party’s social media policy for its representatives.”

When the Daily Echo contacted Mr Syms for a comment, he said: “I was replying to a tweet by someone with a picture of Corbyn (not Jeremy Corbyn who I have respect for) and a journalist called Tim Harcourt who were spreading fake news."

He added he was “just pointing out that the agreement is not a coalition, which they were alleging”.

Mr Syms has been MP for Poole since 1997 and is a government whip. He previously chaired the committee looking at the high speed rail link HS2.

His wife Fiona Syms, from whom he is separated but who works for him as a parliamentary assistant, has also drawn attention for her Twitter activity.

In 2013, she vented her frustration when Mr Syms lost his position in a reshuffle by David Cameron.

She tweeted then: “The Prime Minister just fired the father of my kids over the phone. He gave up chairmanship of a committee to be a whip, worked hard and was widely acknowledged.

“He was utterly gracious and took it like a man, I am beyond furious. Loyalty counted for nothing.”

A short time later she posted: “Whoopsy, children have defected to Labour.”