Qatari mediators return to Tehran to push for US-Iran deal, official says

Oct 30 (Reuters) - Qatari mediators returned to Tehran on Friday as part of efforts to reach a deal between the US and Iran, an official briefed on the talks told Reuters.The mediation talks have been coordinated with the US, the official said.Qatar presented a draft peace plan to Iran on Sunday, according to an official briefed on negotiations. But…