Pakistan foreign minister set to discuss Iran with Rubio in Washington

KARACHI, May 29 (Reuters) - Pakistani Foreign Minister Ishaq Dar arrived in Washington on Friday for talks with U.S. Secretary of State Marco Rubio that are expected to include the latest developments in negotiations on ending the Iran war.A first round of peace talks in Pakistan concluded without a pact but Reuters cited sources as saying on Thursday that Tehran and Washington had reached an initial agreement, to extend a ceasefire announced in April and lift restrictions on shipping through the Strait of Hormuz.