Firefighters in Ukraine's southern region of Odesa have extinguished a sweeping blaze that had threatened a grain warehouse, the state emergency service said on Monday.

No fatalities or injuries were reported as a result of the fire, which spanned around 2,000 meters and charred a portion of the facility in the village of Vizyrka. Authorities did not specify the cause.

"Thanks to the prompt actions of the firefighters, it was possible to prevent the fire from spreading to nearby grain warehouses," the state emergency service said in a statement.

It did not name the damaged facility near the Black Sea port of Pivdennyi, one of Ukraine's largest.

The port is among three involved in a transport corridor through which Ukraine has shipped around 60 million tonnes of mostly agricultural cargoes.