A senior Iranian negotiator says some outstanding issues still remain in the negotiations between Iran and six world powers over Tehran's nuclear program.
Talks have reached the final breathtaking moments; certain issues still remain, Abbas Araqchi told reporters on Monday.
As long as these issues are not settled, one cannot say we have reached an agreement, said the senior negotiator.
It cannot be said with certainty that parties to the negotiations will arrive at a conclusion by Tuesday, he noted.
I cannot promise that the [outstanding] issues will be resolved by tonight (Monday) or tomorrow night, Araqchi further said.