Six killed as Russian missile barrage slams into Ukrainian cities

A barrage of more than 80 Russian missiles and a smaller number of exploding drones have hit residential buildings and critical infrastructure across Ukraine, killing six people and leaving hundreds of thousands without heat or electricity.

The largest such attack in three weeks also put Europe’s largest nuclear plant at risk by knocking it off the power grid for hours before it was reconnected. Because nuclear plants need constant power to run cooling systems to avoid a meltdown, the…