Ahead of tonight's emergency summit of eurozone leaders to address the ongoing Greek crisis, Labour's shadow Chris Leslie has commented on what he wants to see achieved.

He says he hopes a deal will be reached that puts Greece "back on the right course", saying that this is important for British interests, too.

Image source, PA

Issues with the government's online services portal have hampered tax return applications today.

The government Gateway crashed this morning, affecting the submission of forms for several departments including HM Revenue and Customs and the Department for Work and Pensions.

The website acts as a hub for several government services, allowing people to submit self-assessment tax returns, use the jobmatch service or apply for driving licences online.

A spokesman for HMRC said staff were dealing with inquiries over the phone instead to reduce the number of people affected. 

The World at One
BBC Radio 4

Employment Minister Priti Patel tells The World at One that Labour's "failed system" of welfare is what the prime minister wants to tackle. She refuses to accept that cutting tax credits will hit the working poor.

"We're not saying in this speech today about reductions in tax credits. We're talking about the principle of welfare reform," she replies.

When it's put to her by presenter Martha Kearney that she might as well be straightforward about the fact that tax credits will be cut, she replies: "I'm being straightforward with your listeners by speaking about welfare reform."

The Energy Secretary Amber Rudd will be making a statement in the Commons at 15:30 on onshore wind farm subsidies. This means she will face up to an hour of questions on plans to bring forward the end of subsidies.

Another question from an audience member concerns the power of sport to help people improve their lives. David Cameron says he wasn't happy with the progress the last government made on improving sports provision in schools and there's more to do to harness that power.

Wouldn't cutting tax credits be wrong if you want to help families get on, David Cameron is asked? I want to see a move towards an economy with higher pay and lower welfare, he replies, not one in which we take money from people in tax and give it back to them in benefits.

Will you rule out any cuts to disability benefits, he's also asked? The answer isn't exactly unequivocal. The PM says this government is spending more on those benefits than has been spent in the past.

Now for some questions. First up, a member of Her Majesty's press asks whether plans for wage thresholds for migrants will hit the NHS by forcing foreign nurses to leave.

David Cameron says, as his MP did a short time ago on the Daily Politics, that the independent migration advisory committee doesn't have nursing on its list of areas suffering a skills shortage and therefore it shouldn't be exempt from the wage threshold. 

He says there's a "massive training programme" going on which means he does not believe there will be a shortfall of nurses. He also says shortage occupations shouldn't be left on that list for years - British people must be trained to do those jobs to fill the gap.

He might not be spelling it out, but the acceptance seems to be that David Cameron has tax credits in his sights for cuts. Acting Labour leader Harriet Harman criticises that plan.

The prime minister moves on to education and the need to intervene in inadequate schools - he says he's going to change the rules to make it easier to force them to become academies. Coasting schools - those "giving children just enough" - will also be in the firing line. He says they'll be told they must improve themselves or become sponsored academies.

David Cameron is now outlining plans to strengthen the system of social work. Among his ideas is a social work equivalent of Teach First, which recruits top graduates into teaching.

Almost all of the 117,000 families the government's troubled families programme has worked with so far have now been turned around - whether it's finding a job or improving school attendance, says David Cameron.

Treating the causes of underachievement isn't easy, says the PM. "It means talking about things some people find uncomfortable - families, behaviour, the link between effort and reward."

"The wrong track is to ignore the causes and simply treat the symptoms of the social and economic problems we face," says Mr Cameron. He argues the focus has to date been on redistributing money via the tax and benefit system to bring people, technically at least, onto the right side of the poverty line. "It has let down so many of those who most need our help," he adds.

He then delivers the much-trailed line about ending the merry-go-round of tax and benefits.