Tehran, April 20 -- Iran's Parliament Speaker Mohammad Bagher Ghalibaf has disclosed details of behind-the-scenes negotiations with the United States, describing a tense standoff involving a US minesweeper during talks in Islamabad, Al Jazeera reported. In a television interview, Ghalibaf said Iranian officials confronted the US delegation over naval activity in the Strait of Hormuz, reiterating that "the Strait of Hormuz is under the control of the Islamic Republic", as reported by Al Jazeera. He said Tehran viewed US efforts to clear mines in the waterway as a "violation of the ceasefire", warning that tensions were close to escalating, according to Al Jazeera. According to him, both sides were nearing renewed confrontation, "but the enem...