0244 GMT - The Singapore dollar weakens slightly against its U.S. counterpart in the Asian session amid U.S.-Iran tensions. The persistent tensions have "kept oil prices elevated and reinforced concerns about inflation," two strategists at OCBC Group Research say in a research report. "Recent market moves suggest that higher yields are acting more as a brake on risk appetite than a trigger for broader market stress," the strategists say. "Rising oil prices, elevated Treasury yields and resilient U.S. economic data continue to support the USD," the strategists add. The U.S. dollar is 0.1% higher at 1.2777 Singapore dollars, LSEG data show.