Russian forces staged a mass drone attack on the southeastern Ukrainian city of Zaporizhzhia late on Tuesday, triggering fires, injuring 19 people and badly damaging buildings and vehicles, the regional governor said.

A senior Ukrainian defense official told Business Insider that Russia has been modifying its Shahed drones and fielding new models.

Moldova on Wednesday displayed a Russian drone that fell on its soil outside its foreign ministry as it summoned Moscow's envoy over the crash, in an overt criticism of Russia's war in neighbouring Ukraine.

Moldova summoned Russia's ambassador on Wednesday to complain about the latest intrusion of drones into its airspace and urged Moscow to take measures to prevent further instances.

Romania scrambled fighter jets as two Russian drones crossed into the country's airspace from Ukraine on Tuesday.

Russia has launched a major missile and drone attack on Kyiv, killing six people and wounding at least 35, including a pregnant woman.

Ukrainian officials say a missile and drone attack killed dozens, right as the U.S. Army secretary arrived to push for peace talks.

Russia is now using fiber-optic drones with a 50-kilometer reach, a senior Ukrainian official told Business Insider.

Romania’s defense chief said the NATO member state will soon be able to deploy a US-supplied anti-drone system to thwart a rising number of airspace breaches by Russia.

Vladimir Putin has said that Russia will fight 'until the last Ukrainian dies' if it needs to and warned peace will not happen until Kyiv withdraws its troops. Diplomatic efforts to defuse Europe's deadliest war since World War II have been stepped up in recent weeks,