PM Mateusz Morawiecki says measures will combat illegal migration from Slovakia, which has arrested 27,000 migrants so far this year. Poland says it doesn't want to be accused of having porous borders.

Since recording began in 1979, the surface area of sea ice around Antarctica when it should be at its maximum size was at the lowest level "by a wide magin," according to US data.

Josep Borrell, the EU's high representative for foreign and security policy, speaks to Talking Europe from New York, where he is attending the annual United Nations General Assembly. We discuss the big issues facing the EU in the world: Ukrainian grain exports and food security; the conflict between Azerbaijan and Armenia; the EU's strategy in the Sahel, and migration.

Germany and France decided to jointly develop key weapons systems, but several have been abandoned. And now, the MGCS battle tank prestige project is meeting a lot of resistance.

This week in Across Africa, Georja Calvin-Smith speaks to Namibian President Hage Geingob ahead of his arrival in New York for the UN General Assembly. He shares his perspective on governance, the impact of Africa's first climate change summit and the role of the African Union in responding to regional upheaval.

Authorities in southern Taiwan have launched an investigation into the fire and expressed condolences to victims' families. Officials believe that natural gas may have played a role in the deadly event.