US secretary of state Marco Rubio condemned Tehran's 'open and active' attacking of commercial vessels. (EPA Images pic)ATLANTA: US president Donald Trump has not made a decision about fresh strikes on Iran amid stalled peace talks, US secretary of state Marco Rubio said Saturday.

"We can achieve military objectives if we seek to," Rubio told a press conference in Atlanta, Georgia, where he was hosting G20 foreign ministers for a two-day meeting.

But Rubio added that Trump "hasn't made a decision" on further military action, amid reports that the US leader could attack after key midterm elections on Tuesday.

"I have no announcement in that regard with you today, and nor do we take any of it lightly," Rubio said.