Hello, I'm Jonathan Izard with the BBC News.

Eurozone leaders are still locked in talks at an emergency summit, trying to find a compromise that would enable Greece to avoid running out of money and to keep the single currency. The Greek Prime Minister, Alexis Tsipras, is anxious to strike a deal before any Greek banks collapse, which could happen within days. Our economics editor, Robert Peston, who's in Athens, says the crisis is having a huge impact on the Eurozone itself.

"We have the spectacle this weekend of the two most important Eurozone countries, Germany and France, at loggerheads over the future of Greece. And that, I think, has done damage all over the world to the idea that the Eurozone is a stable, collected enterprise by Europe's leading economies. And I think that we will be paying a price for this crisis in the wider European Union for weeks, months, possibly, years to come."

The Mexican President, Enrique Pena Nieto, says he has faith that his security forces will recapture one of the world's most powerful drug lords, Joaquin Guzman, who's escaped from a high-security prison. Here's Katy Watson.

"Joaquin Guzman was last seen in the prison showers on Saturday evening. When guards checked his cell later, he disappeared. They found a hole, ten metres deep, with a ladder leading to a tunnel, a kilometre and a half long. According to security officials, it had lighting, ventilation and stairs. For a government, which, in recent years, has boasted of its record of catching big drugs lords, this latest escape is particularly embarrassing, because it's the second time Guzman has got away."

The Colombian government has issued a joint statement with FARC rebels, agreeing to deescalate the conflict between them. Government forces will pull back from military action in a week's time, if the rebels keep their promise of a unilateral ceasefire. It's the first such agreement since peace talks began in Cuba in 2012.

Representatives of six world powers and Iran meeting in Vienna are reported to be close to a deal over Tehran's nuclear programme, with an announcement possible on Monday. The deal would give Iran relief from many international sanctions in return for observing strict limits on its nuclear programme. Jon Sopel is in Washington.

"One senior administration official, who's been very close to these talks, said a perfect deal is very easy to sell. One, where Tehran walks in, waves a white flag and offers endless concessions, is very easy to sell. A good deal, which has been forged out of compromise, concession and mind-boggling, complex details, very much more so. The Obama administration wants to say this is a good deal, and better than no deal at all. His opponents think otherwise, and they are making the running at the moment."

At least two car bombs have gone off and a suicide bomber has blown himself up in the Iraqi capital, Baghdad. More than twenty-eight people were killed, and eighty injured in mainly-Shiite neighbourhoods. No one has claimed responsibility.

World news from the BBC.

Video footage has emerged in Israel, allegedly showing a senior Israeli officer, shooting dead a fleeing Palestinian teenager, who had thrown a rock at his vehicle last week. The video, released by a human rights group, contradicts earlier claims by the military that the officer opened fire because his life was in danger and that he had exhausted all measures before shooting the teenager. The Israeli military has declined to comment.

A bomb explosion in the Syrian city of Aleppo has caused part of the wall of its ancient citadel to collapse. The magnificent Thirteenth-century citadel, with its ramparts and towers, is a U.N.-listed World Heritage Site. Rami Jouer, a Syrian activist, told the BBC that the people's relationship with the monument was changing.

"The citadel, at the moment, stands as a launching point for the Syrian military. And it's surrounded by rebel-controlled areas that continues to be attacked by the regime. So it's no longer looked at as a historic site, but rather a military site. That's what makes this incident significant. It's that there is now an advance within the old city."

Hundreds of thousands of people in Paraguay have attended the final mass celebrated by Pope Francis during his visit to South Africa. The Pope urged Christians to reject, what he called, the logic of selfishness. During his previous stops in Bolivia and Ecuador, the Pope spoke out against social injustice. He leaves Paraguay on Monday after an eight-day tour.

The Swiss tennis player, Martina Hingis, has won two Wimbledon titles in two days, seventeen years after her last trophy success of the Championship. She won the Mixed Doubles with India's Leander Paes, following Saturday's triumph in the Women's Doubles. Martina Hingis said it'd been quite a weekend."Just that arrided you. You have the adrenalin. That got me back out here, and with me under, you know, in the practice, already I felt good. Well, let me just go out there and enjoy, just bring this title home. It seemed more incredible. But I think I really like the last night. And today was just amazing. The emotions."

BBC News.