The southern port of Odesa sustained "significant damage" in Russian strikes overnight, Ukrainian military officials said Monday, as more details emerged of Moscow's latest attack on Ukraine's grain export infrastructure.

In a Telegram post, the Defense Forces of the South of Ukraine said Russia launched two Oniks supersonic missiles, 12 Kalibr cruise missies and 19 Shahed drones at Odesa overnight.

Air defenses intercepted all of the drones and 11 of the Kalibr missiles, but "unfortunately, the enemy hit the port infrastructure,"  it said.

The attacks also caused a fire at a defunct hotel, the post added.

Russia has repeatedly attacked Odesa in recent months, targeting Ukrainian grain infrastructure following the collapse of the Black Sea grain deal.

In a Telegram post earlier Monday, Oleh Kiper, head of the region's military administration, said at least one civilian was injured in the overnight attacks.