Tweets, external: "Miliband goes on NHS again: Labour keen to keep its best issue at the top of the agenda. #PMQs"

Mr Cameron said last week 429,000 people across England were seen by A&E - that was 3,000 more patients every day.

On broader health care Mr Miliband said there was a report this week of a patient waiting 35 hours in A&E and asked if this was a sign of the NHS in England at breaking point.

Labour leader Ed Miliband tells Mr Cameron there were many people with learning disabilities being moved into institutional care.

David Cameron said Labour in Wales had cut the NHS in Wales and had failed to reform it.

Conservative Anne Main told MPs that her mother died under the Welsh health service, and says the state of the NHS in Wales should be discussed in an opposition day debate later.

Tweets, external: "Oh, UKIP's second MP @MarkReckless looking to be called by the Speaker #pmqs"

And we're off! David Cameron's first question is about the economy.

Tweets, external: "#PMQs set to start soon. Westminster on tenterhooks for Dave's joke about Emily Thornberry/Islington/white van man"

BBC political editor Nick Robinson tells BBC2's Daily Politics that if he was Labour leader Ed Miliband he would talk about the forthcoming autumn statement, how the deficit was doing and spending on the NHS.

Tweets, external: "#PMQs coming up at midday on @BBCNews channel. How many white van gags can Tory MPs come up with in half an hour?"

Is this a record - an intervention before the session even starts. "Far too much noise in the chamber," says Speaker John Bercow.

Speaking on BBC2's Daily Politics, Antony Walker, of TechUK, sidestepped questions about whether Facebook was wrong in failing to pass on information posted by Lee Rigby's killer Michael Adebowale. "The question is: 'Is there a clear legal framework that enables companies in the future to respond and address these issues in a clear legal way?'" he said.

Tweets, external: "Just heard some Tory MP ask would Scot Gov accept or begrudge what is 'offered to them' after Smith Commission. Offered? #capinhand #pmqs"

The death of Fusilier Lee Rigby is also likely to be raised in the Commons, after David Cameron said internet companies had a "social responsibility" to act on terrorist material posted online after a report detailed how one of his killers spoke on Facebook about wanting to murder a soldier.

There are still plenty of seats up for grabs on the green benches of the Commons as PMQs approaches.

Scottish questions are currently under way in the House of Commons.

The deputy prime minister's proposals to tackle "benefits tourism" come ahead of David Cameron's long-trailed speech on his proposals to cut immigration.