Iran said on Monday it has yet to decide whether to extend a monitoring deal with the U.N. nuclear watchdog which lapsed last week, amid Washington’s warning that Tehran’s failure to renew it would complicate talks to revive its 2015 nuclear accord. “No decision has been made yet, either negative or positive, about extending the monitoring deal with the International Atomic Energy Agency (IAEA),” Foreign Ministry spokesman Saeed Khatibzadeh told a televised weekly news conference. Iran and world powers are in negotiations to revive the 2015 nuclear deal, under which Iran accepted curbs to its nuclear programme in return for the lifting of international sanctions. Washington abandoned the deal in 2018, and Tehran responded by violating some of its nuclear restrictions. […]