Russia and Ukraine each exchanged 307 of their service personnel on Saturday on the second day of a prisoner exchange that, when completed, is set to be the largest such swap in the three-year war between the two countries.

President Trump said Russia and Ukraine were undertaking a major prisoner swap, in a post on social media early Friday. “A major prisoners swap was just completed between Russia and Ukraine,” Trump wrote on his Truth Social platform.

A massive Russian drone and missile attack on Kyiv Saturday wounded at least 15 people, even as Russia and Ukraine continued the biggest prisoner swap since the start of Moscow’s invasion. Ukraine’s air force said Russia launched 14 ballistic missiles and 250 attack drones overnight,