Members of the Group of Seven (G7) wealthy nations on Sunday announced a ban on imports of Russian gold as the G7 summit in the Bavarian Alps began under the shadow of the war in Ukraine and consequences ranging from energy shortages to a food crisis. 

The move by Britain, the United States, Japan and Canada is a part of efforts to tighten the sanctions squeeze on Moscow and cut off its means of financing the invasion of Ukraine more than four months into a conflict that Russian President Vladimir Putin calls a special military operation. 

“The measures we have announced today will directly hit Russian oligarchs and strike at the heart of Putin’s war machine,” British Prime Minister Boris Johnson said in a statement. “We need to starve the Putin regime of its funding. The UK and our allies are doing just that,” he added. 

A senior US administration representative said that the G7 would make an official announcement on the gold import ban on Tuesday. 

“This is a key export, a key source of revenue for Russia in terms of their ability to transact with the global financial system,” the US official said. 

Russian gold exports were worth 12.6 billion pounds ($15.45 billion) last year, and wealthy Russians had been buying bullion to reduce the financial impact of Western sanctions, the British government said. 

As well as the gold import ban, G7 leaders were also having “really constructive” talks on a possible price cap on Russian oil imports, a German government source said. 

The three-day summit takes place against an even darker backdrop than last year, when British, Canadian, French, German, Italian, Japanese and US leaders met for the first time since the start of the COVID-19 pandemic. 

Soaring global energy and food prices are hitting economic growth in the wake of the conflict in Ukraine, with the United Nations warning of an “unprecedented global hunger crisis”. 

Climate change, an increasingly assertive China and the rise of authoritarianism are also set to be on the agenda. 

G7 leaders are expected to show a united front on supporting Ukraine for as long as necessary and cranking up pressure on the Kremlin, though they will want to avoid sanctions that could stoke inflation and exacerbate the cost-of-living crisis affecting their own people.