 Yemen's Houthis have agreed to release a prominent politician held for nearly a decade in a prisoner swap deal with the country's Saudi-backed government. The Iranian-aligned group hasn't confirmed if Mohamed Katan, leader of the Islah Party, is still alive. If he's dead, his body will be exchanged for those of 50 prisoners held by Yemen's internationally recognised government. If he's alive, 50 living Houthi prisoners will be freed instead.