A senior US envoy on Tuesday urged Armenia and Turkey to make progress in reconciliation talks aimed at mending relations and re-opening their border. Philip Gordon, the US assistant secretary of state for European and Eurasian affairs, said talks should be concluded within "a reasonable time frame." "The process can't be on forever. But I think the parties understand that, both sides appreciated this, they need to go forward and they will," he said at a press conference during a visit to the Armenian capital Yerevan. "There should be no preconditions" in the talks, he said, adding that the normalisation of diplomatic ties between the two neighbours "would benefit Turkey, Armenia and the entire region."