KYIV — A partial evacuation has been ordered in Russia's Tver region after a "massive" Ukrainian drone attack sparked a fire there, the local governor has said.

Igor Rudenya said emergency services in the town of Toropets were trying to "localize" the blaze caused by falling drone wreckage. He did not say whether there were any casualties.

Meanwhile, unverified footage has emerged purportedly showing a massive blast in the town, amid unconfirmed reports that a weapons depot was hit overnight.

Toropets lies about 380km (236 miles) northwest of Russia's capital Moscow, and some 470km north of the border with Ukraine.

On Wednesday morning, Toropets authorities said buses had already been prepared for the evacuation.

They also claimed that the situation was "under control" in the town of about 13,000 residents.

The authorities did not say how many people were being evacuated.

Meanwhile, Russia's state media reported that regional schools and kindergartens would be closed on Wednesday.

Overnight attacks were also reported in Russia's western Bryansk, Kursk, Oryol and Smolensk regions.

Local officials said nearly 50 drones and two missiles were shot down.

Ukraine has not commented on the reported attacks.

Overnight, Ukrainian air defenses were engaged against oncoming Russian drones near the capital Kyiv, city military administration head Serhiy Popko said.

There were also reports of blasts in Ukraine's north-eastern city of Sumy, near the Russian border.

It was not immediately clear whether there were any casualties.

The claims by both Russian and Ukrainian officials have not been independently verified.

Russian President Vladimir Putin launched a full-scale invasion of Ukraine in February 2022. — BBC