Ukraine says it shot down Russian drones; American fighter launched in swap

Ukrainian President Volodymyr Zelenskyy says 13 Russian drones were shot down overnight, but Kyiv and Kherson were struck in attacks. And an American fighting for Ukraine was reported freed in a swap with Russia. CBS News foreign correspondent Imtiaz Tyab spoke with Lana Zak and Errol Barnett about the latest developments in Ukraine.