The global food supply, already under pressure from high commodity prices, is at risk from the invasion of Ukraine, it said, reiterated a warning it made last week.

On Wednesday, Yara announced cutbacks to its European fertiliser output due to surging prices for natural gas used in manufacturing fertilisers.

The European Union on March 9 announced fresh sanctions against Russia and its ally Belarus over the war, which Moscow describes as a "special operation".

"Yara is currently reviewing the detailed scope and impact of the sanctions," the company said in a statement.

Yara will seek to use its global production system to keep supplying customers and secure continuity in food supply chains, it said.

"However, Yara repeats its concern for global food security and calls on government action to protect food supply chains and decrease dependency on Russia."

(Reporting by Terje Solsvik; editing by Toby Chopra and Jason Neely)