Explosions occurred in Odesa and Kharkiv, with ballistic missile threats continuing from the southeast, according to an X post by @war_monitor_ua at 02:31 local time on December 30, 2025, and a statement from the Ukrainian Air Force of the Armed Forces during the reporting window from 12:15 a.m. to 1:15 a.m. UTC. The Ukrainian Air Force warned of the threat of ballistic missiles launched from the southeast direction, as shared in their update. The @war_monitor_ua post stated that the ballistic threat continues following the explosions in the two cities. These reports come over the past hour amid the ongoing Russia-Ukraine conflict.