Mr Robinson also thanked , external the cardiac team at the Royal Victoria Hospital and "all who sent messages of support & encouragement in the last week. Your thoughts & prayers have been really appreciated".

Northern Ireland First Minister Peter Robinson says in a tweet, external that he has been discharged from Belfast's Royal Victoria Hospital after suffering a suspected heart attack on Monday. 

Image source, PA

Prime Minister David Cameron has arrived in Berlin for his meeting with German Chancellor Angela Merkel. The pair began by inspecting troops as a military band played the national anthems of both countries.

Ms Cooper also says the controversy over alleged corruption at Fifa is "shocking" and a "disgrace" and that Britain should be putting maximum pressure on football's world governing body for reforms.

The 209 members of Fifa are to vote for their new president at a congress in Zurich later. Sepp Blatter, the favourite, is seeking what would be a fifth term, but in the face of rather loud opposition.

Yvette Cooper tells the BBC she is getting support from around the country, "not just Westminster" in her bid to become Labour leader. 

The party has been "too narrow and needs to reach out," she says, adding that she's been speaking to entrepreneurs at Tech City and pensioners in Peterborough as part of her "listening" process. 

So Mr Burnham is already doing the Labour leadership campaign rounds, and Ms Cooper will officially launch her campaign in Yorkshire later. Elsewhere, shadow care services minister Liz Kendall will speak in the Midlands as she launches her bid for Labour's top job.   

A heavily-pregnant Rachel Reeves introduced Andy Burnham at his campaign event. "This is Rachel's last day at work before she goes on maternity leave", said Mr Burnham, "so if she is not the living embodiment that Labour is the party of hard work I don't know what is."

Conor Pope, writing in the LabourList blog, , external says many within Labour now see the idea of "concede and move on" as the only option to regain economic trust. 

He adds: "Certainly, it seems all of the leadership campaigns are signed up to the idea that fighting a third election at odds with the public on pre-2008 economics is not a strategy that delivers power." 

Image source, PA

Ms Cooper met young entrepreneurs during her time at Tech City in north London.

Ms Cooper is setting out on what she calls a "listening tour," the first leg of which will see her meeting pensioners in Peterborough and members of a working men's club in Nottinghamshire, among things. She said Labour should be encouraging new tech-start-ups outside London, reshaping public services and encouraging jobs growth beyond Britain's large cities.

Mr Burnham isn't the only Labour hopeful on the campaign trail today. Shadow home secretary Yvette Cooper, speaking at Tech City in north London, says Labour needs to start talking about the future of the country, not the past of the party.

Image source, Getty Images

Mr Burnham has a message  for all the nation's shoppers out there. "Aspiration is not the preserve of those who shop at John Lewis. Aspiration is universal; it is felt by Asda and Aldi shoppers too."  

Rowena Mason, political correspondent at the Guardian, tweets that Mr Burnham says, external no party can win a general election in Britain if they convey a sense of being anti business and anti success. 

Labour should treat entrepreneurs as "heroes", leadership contender Andy Burnham says.  Addressing workers at Ernst & Young in London this morning, he claims his party has neglected them in recent years.    

Andy Burnham, speaking on the Labour leadership campaign trail this morning, says Labour remains "the only political party with reach into all parts of the country", according to the New Statesman's George Eaton., external

George Eaton also reports via Twitter, external that Andy Burnham described himself as "the comprehensive lad" who made it to Cambridge and the Cabinet.  

George Eaton, political editor of the New Statesman, tweets this image of Labour's Andy Burnham speaking this morning.

Number 10 tweets an image of the two PMs, ahead of their breakfast meeting.

The BBC's Europe correspondent, Chris Morris, says it was thought to be a "good meeting" between the two prime ministers in Warsaw.

He also says that Mr Cameron is "feeling his way around, seeing where the boundaries lie", but adds that unless all 28 EU member states agree to reforms, then they will not agree to anything particularly significant.

Image source, EPA

David Cameron has a grand setting for his breakfast this morning - this is the Lazienki Royal Palace in Warsaw, where Polish Prime Minister Ewa Kopacz is seen waiting to greet him earlier.