The US says it's willing to hold talks with Iran over its nuclear energy program, if Tehran is "serious" about returning to negotiations in September, Press TV reported.
Washington's announcement comes shortly after Iran said it will return to talks with the so-called P5+1 one if its conditions are met.
"If Iran is serious about talking to the P5-plus-one, then I think we're willing to meet," US State Department spokesman Mark Toner told reporters on Tuesday.
Toner declined to comment on Iran's conditions for talks on its nuclear program.
On Tuesday, the secretary of Iran's Supreme National Security Council said Tehran will be ready to sit at the negotiating table only when the direction of the talks is clear.
"Once the direction of the negotiations becomes clear, Iran will be ready for talks on constructive international cooperation to remove common concerns", wrote Saeed Jalili in response to a letter by the EU foreign policy Catherine Ashton.
Tehran has urged the P5+1 group - five veto-wielding members of the UN Security Council plus Germany - to state its position on Israel's nuclear arsenals, as one of its conditions for holding new talks.
"Obviously we'd have to evaluate the Iranian offer," he said.
"But... it's a two-track approach and that engagement track always remains open," AFP quoted Toner as saying.
Toner's remarks come after US President Barack Obama on Tuesday vowed to continue putting pressure on Tehran over its nuclear program.