The Group of Seven nations will probably maintain their vigilance on currencies next week without committing themselves to supporting the dollar, said Eisuke Sakakibara, Japan's former top currency-policy official.

G7 finance ministers and central bankers will probably repeat their language that excessive foreign-exchange movements are undesirable, Sakakibara, 67, said Thursday in an interview.

"The currency market isn't in a crisis now, and G7 countries have never sent any strong messages on foreign-exchange rates based on the type of volatility we've seen recently," he said.