Soldiers spent months making clandestine trips across Ukraine's Dnipro River to plan the counteroffensive. Instead of facing off against Russian forces, this unit found itself fighting floodwaters.

The Zaporizhzhia Nuclear Power Plant used a large reservoir for cooling water. Now that reservoir is rapidly draining.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

A Norwegian organization says that two seismic networks it oversees saw an explosion at the war-torn Kakhovka dam in Ukraine around the time it failed.