U.S. Treasury Secretary Jacob Lew says finance leaders of major industrial countries meeting in Japan need to find ways to use all the "policy levers" they have to help counter anxiety over global economic prospects.

Finance ministers and heads of central banks of the Group of Seven spent Friday discussing ways to use monetary policy, government spending and longer-term reforms to help support growth.

Lew said he hoped the meeting would help ease concerns over faltering growth, as a follow-up to recent discussions in China by the wider Group of 20 major economies, where members committed to not manipulating exchange rates to their own advantage.

Lew and other top financial officials are discussing a statement to be issued next week at a G-7 summit in central Japan.