The Prime Minister has rebuked Tory MP Michael Fabricant after he tweeted about punching a journalist.
Mr Fabricant tweeted about the Independent columnist Yasmin Alibhai-Brown after watching her during a TV debate yesterday, saying: "I could never appear on a discussion prog with @y_alibhai I would either end up with a brain haemorrhage or by punching her in the throat."
Speaking to LBC radio, David Cameron welcomed Mr Fabricant's subsequent apology, but said the original tweet was "not an acceptable thing to say".
"Michael knows that that is my view and I don't want to see this happen again," he added.
More top news
Police are hunting four men who smashed their way into a jewellers in broad daylight and threatened staff with sledgehammers.
ComRes polling agency chairman says the next 100 days will be be gruelling in the most uncertain General Election that anyone can remember.
Pictures taken 70 years after the liberation of the Nazis' Auschwitz death camp echo the horrors of its Holocaust past.