Valerie Sanderson

Heathrow Airport is beginning to get back to normal after a fire at a nearby electricity substation shut down Europe's busiest hub, causing chaos. A hearing is taking place in the US to decide on the legality of the deportation of alleged Venezuelan gang members. also in this podcast.

As negotiations to end the fighting in Ukraine continue, we hear from troops in the region of Sumy, close to the Russian border in the northeast. For three consecutive nights, thousands of protesters have flooded the streets of Istanbul and other cities over the arrest of Turkish President Erdogan's main rival, Ekrem İmamoğlu. On Friday night, there have been scenes of violence.

As negotiations to end the fighting in Ukraine continue, we hear from troops in the region of Sumy, close to the Russian border in the northeast. For three consecutive nights, thousands of protesters have flooded the streets of Istanbul and other cities over the arrest of Turkish President Erdogan's main rival, Ekrem İmamoğlu. On Friday night, there have been scenes of violence.

The area around Istanbul's city hall was brought to a standstill, with riot police deploying tear gas near to where Meir Imamoglu is due to stand trial on charges of bribery. Addressing the protesters, Turkish opposition leader Özgür Ozil called for his release.

The area around Istanbul's city hall was brought to a standstill, with riot police deploying tear gas near to where Meir Imamoglu is due to stand trial on charges of bribery. Addressing the protesters, Turkish opposition leader Özgür Ozil called for his release.

President Erdogan has denounced the demonstrations, calling them acts of vandalism and street terror. I got this update from BBC's Hilkan Boran, who's in Istanbul.

President Erdogan has denounced the demonstrations, calling them acts of vandalism and street terror. I got this update from BBC's Hilkan Boran, who's in Istanbul.

And President Erdogan has said he will not tolerate this. What is going to happen in this court case?

And President Erdogan has said he will not tolerate this. What is going to happen in this court case?

And are they calling on people to come onto the streets again?

And are they calling on people to come onto the streets again?

Hilkan Boran in Istanbul. As we record this podcast, the situation at Heathrow Airport is still far from normal after Friday's blackout caused by a huge fire at an electricity substation nearby. Very few flights landed and took off, mainly to relocate aircraft and to bring planes into London after so many were diverted or grounded on airfields around the world.

Hilkan Boran in Istanbul. As we record this podcast, the situation at Heathrow Airport is still far from normal after Friday's blackout caused by a huge fire at an electricity substation nearby. Very few flights landed and took off, mainly to relocate aircraft and to bring planes into London after so many were diverted or grounded on airfields around the world.

leaving passengers stranded, like Adam Brown on a British Airways plane en route from Washington to London.

leaving passengers stranded, like Adam Brown on a British Airways plane en route from Washington to London.

A normal day would see more than 1,300 flights carrying nearly 300,000 passengers. I spoke to our correspondent Tom Simons, who's at Heathrow.

A normal day would see more than 1,300 flights carrying nearly 300,000 passengers. I spoke to our correspondent Tom Simons, who's at Heathrow.

And what about the investigation into what exactly happened? Because this fire has raised serious questions, hasn't it, about why Heathrow is dependent on a single power source?

And what about the investigation into what exactly happened? Because this fire has raised serious questions, hasn't it, about why Heathrow is dependent on a single power source?

Tom Simons. Sudan's army chief says there'll be no talks with the paramilitary rapid support forces until they retreat and lay down their arms. General Abdel Fattah al-Burhan was speaking at the funerals of two soldiers killed shortly after his forces had captured the presidential palace in Khartoum. The BBC spoke to a woman in Omdurman, close to the capital, about the latest situation there.