Israel has clearly decided to retaliate against Iran for missile and drone attacks, Britain’s foreign minister David Cameron said during a visit to Israel, the starkest warning yet of another volley coming in regional escalation, Reuters reports.

“It’s clear the Israelis are making a decision to act,” Cameron told reporters early in his visit to Jerusalem. “We hope they do so in a way that does as little to escalate this as possible.”

Washington and other Western governments hope new economic sanctions against Iran will help persuade Israel to limit the scope of its retaliation. Cameron said Britain wanted to see coordinated sanctions against Iran by the Group of Seven big democracies, which are meeting this week in Italy.

“They need to be given a clear unequivocal message by the G7,” he said.