Japanese shares retreated at the start of trading Tuesday, as fading hopes for regional stability rekindled worries over supply disruptions and sustained high energy prices.
The Nikkei 225 dropped 372 points, or 0.5%, to kick off at 68,847.35.
Investor sentiment soured after U.S. President Donald Trump signaled reluctance to renew the soon-to-expire pact with Iran, while hostilities escalated once more in Lebanon.
Despite recent U.S. data suggesting milder inflation, the combination of renewed geopolitical friction and crude oil's upward climb has brought price-growth fears back into focus.