Three people were killed in Ukrainian overnight drone attacks in the Tula and Nizhny Novgorod regions and which also targeted Moscow, Russia's regional official and the defence ministry said on Monday, Reuters reported.

Two people died and two were hospitalised following an attack before midnight on Sunday on the Tula region that borders the Moscow region to its north, Tula Governor Dmitry Milyaev said on the Telegram messaging app.

One person was killed and two others were hospitalised following a Ukrainian attack targeting an industrial zone in the Nizhny Novgorod region in western Russia, Gleb Nikitin, the governor of the region, said on the Telegram, according to Reuters.