Solar radiation glitch grounds thousands of Airbus jets worldwide

More than 6,000 Airbus A320-family aircraft were briefly grounded after solar radiation was found to interfere with flight-control computers. Most planes will return to service after quick software updates, but older jets need hardware replacements, causing scattered global disruptions.

Also in the programme: in Ukraine, President Zelensky has called for unity, after his chief of staff resigned. Andriy Yermak stepped down after anti- corruption investigators searched his residence earlier in Kyiv. Mr Yermak headed the Ukrainian delegation at talks about ending the war with Russia.

And we talk to a former schoolgirl who was kidnapped in Nigeria in 2014. Rebecca Ishaku managed to escape by jumping off a truck as it was being driven by Boko Haram militants. Kidnappings in the country have been an ongoing issue for many years. Most notoriously in April 2014, the Nigerian militant group Boko Haram kidnapped 276 schoolgirls from the Government Girls Secondary School in Chibok, in Borno state in north-eastern Nigeria.

 Our guests today: Momtaza Mehri, a writer, poet and researcher and Andreas Østhagen, Research Director for Arctic and Ocean Politics at the Fridtjof Nansen Institute in Norway. PHOTO CREDIT: An Airbus passenger aircraft by Austrian Airlines / REUTERS