Ukraine activated its aerial defenses in the coastal city of Odesa as Russia carried out missile and drone strikes on southern and eastern Ukraine overnight that caused damage to infrastructure in the Black Sea port city, Ukrainian officials said Tuesday.

Sergiy Bratchuk, the Ukrainian spokesperson for the Odesa military region, announced on the messaging platform Telegram that air defense operations were underway in Odesa.

The Russian strikes come following a blast on the bridge linking Russia to Crimea, which Russia illegally annexed in 2014, and Moscow's refusal to extend the agreement enabling grain exports from the region.

The city, located in southern Ukraine, houses maritime terminals that played a crucial role in the expired grain export agreement between Moscow and Kyiv.

The grain deal, signed in July 2022, had allowed for the passage of vital grain shipments through Ukraine's Black Sea ports, which were previously blocked by Russian warships during the invasion last year.

Oleg Kiper, the head of the Odesa region's military administration, took to Telegram to inform residents that Russia was "attacking the south of Ukraine with attack drones."

He urged people to stay in shelters.