The United Nations says the Venezuelan police and military are carrying out hundreds of extrajudicial killings under the pretext of fighting crime. The UN human rights chief, Zeid Ra'ad Al Hussein, said nobody was being held to account for the killings, suggesting the rule of law was virtually absent in Venezuela. Also in the programme: Elections in Turkey and allegations the former tennis player Boris Becker carried a fake diplomatic passport. (Photo: Venezuelan armed forces. Credit: Getty Images)

Newshour's Razia Iqbal is in Turkey, ahead of crucial elections there this weekend that will determine the future of the country's increasingly powerful president, Recep Tayyip Erdoğan. Also in the programme: How the war against Islamist extremists in Mali never went away; and James Coomarasamy reports from a make-shift rubbish tip outside of of Moscow, that's solving problems for the capital -- but causing headaches in the countryside. (Photo: Supporters of Turkey"s President Recep Tayyip Erdogan cheer and chant slogans ahead of a campaign rally on June 17, 2018 in Istanbul. Credit: Getty Images)

As Melania Trump makes a surprise visit to border facilities in Texas, the White House has been accused of expressing mixed messages over when the separated families will be reunited. Also in the programme: We speak to the Austrian foreign minister Karin Kneissl about Europe's immigration crisis. And we have a special report from the Sahel on how the desert became the new frontline in the war against Islamist militants. (Photo: A boy from Honduras taken into custody by US Border Patrol agents near the US-Mexico Border in Texas Credit: John Moore/Getty Images)

The US political battle over migrant children separated from parents has shifted to Congress, after Donald Trump signed an order to halt the policy. Hear from one Republican member of Congress critical of how the White House has handled the immigration crisis. Also in the programme: we're on the frontline of the war against Islamist extremism in the Sahara Desert; new legal worries for Israeli Prime Minister Benjamin Netanyahu's family; and the prospect of debt relief for Greece. (Photo: A boy from Honduras watches a movie at a detention facility. Credit: Getty Images)

After days of pressure, US President Trump has signed an executive order to end the practice of dividing parents from their children, if they cross the border into the US and are detained for being illegal migrants. We hear from our reporter and a youth care worker at a detention centre in Arizona. Also on the programme, an inquiry into the deaths of elderly people at a hospital in southern England has concluded that more than four-hundred-and-fifty patients died as a direct result of being given powerful painkillers without medical justification. We speak to a victim's family. And we hear from Tehran where the Iranian authorities allow a live screening for both men and women of a World Cup match. (Photo: Immigrant children housed in a tent encampment by the Trump administration near the Mexican border in Tornillo, Texas, U.S; Credit: REUTERS/Mike Blake)

The South Sudanese leader, Salva Kiir, and the rebel leader, Riek Machar, are due to hold talks for the first time in two years, in Addis Ababa, Ethiopia. The country has been devastated by civil war since 2013. We will look at the role played by the Ethiopian Prime Minister, Abiy Ahmed. Also in the programme: An inquiry into deaths of elderly patients at a British hospital has found that more than 450 died after being given powerful painkillers without medical justification; and Newshour's James Coomarasamy on the changing face of the Russian countryside. (Photo: South Sudan"s President Salva Kiir (left) and South Sudan's rebel leader Riek Machar (right). Credit: Getty Images.