Leaders of the Group of Seven industrialized nations warned Russia not to use biological, chemical or nuclear weapons in its war with Ukraine, they said in a statement released after talks in Brussels on Thursday.
"We warn against any threat of the use of chemical, biological and nuclear weapons or related material," said the leaders in a joint statement released by Germany.
All countries were ready to welcome refugees from Ukraine, they said.
On energy, the leaders called on oil- and gas-producing countries to act responsibly and boost supplies to international markets, adding that OPEC had a role to play in this. They also said they would avoid food export bans.
