By Hideyuki Sano
Asian shares ticked down as renewed U.S. sanctions on Tehran were seen as disruptive for many companies that have deals with Iran.
Trump's move is also seen as risking worsening already-tense relations between Iran and U.S. allies in the region.
"In the very short term, it looks as if the impact of heightened geopolitical worries was limited to oil markets. But that is not the end of the story," said Norihiro Fujito, senior investment strategist at Mitsubishi UFJ Morgan Stanley Securities.
"U.S. sanctions could affect various industries. And tensions between Iran and Israel look set to intensify. Those will begin to cap share prices," he added.
U.S. West Texas Intermediate (WTI) crude futures
Brent crude futures
Iran, the third-biggest producer among the Organization of the Petroleum Exporting Countries, produces about 3.8 million barrels per day (bpd), or about 4.0 percent of the world's oil supplies.
MSCI's broadest index of Asia-Pacific shares outside Japan <.MIAPJ0000PUS> dipped 0.1 percent in early trade while Japan's Nikkei <.N225> fell 0.4 percent.
On Wall Street caution over rising political risks was palpable. Energy shares <.SPNY> gained 0.78 percent and defence contractor stocks rose, with Lockheed Martin
Boeing
Souring risk sentiment is hitting emerging markets, which have been clobbered in recent weeks by concerns about capital outflows, as the prospect of higher U.S. interest rates attracts investors back to U.S. bonds rather than riskier assets.
Countries with high perceived political risks, such as Brazil and Turkey, were among the worst hit. The Brazilian real hit near two-year low
Among major currencies, the risk-sensitive Australian dollar hit an 11-month low of $0.7434 and last stood at $0.7449
The euro hit a 4 1/2-month low of $1.1838 on Tuesday and last stood at $1.1860
The currency was hit by increasing prospects of an another election in Italy as the political impasse there has continued since an inconclusive ballot in early March.
The British pound stood at $1.3548, near a 4-month low of $1.3485 touched on Tuesday.
The dollar was little changed at 109.11 yen
(Reporting by Hideyuki Sano; Editing by Eric Meijer)
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)