US envoys are expected to travel to Pakistan on Saturday in a new bid to salvage ceasefire talks with Tehran, even as Iran ruled out direct negotiations with US representatives as its top diplomat arrived in Islamabad.

U.S. President Donald Trump, who boasts of his peacemaking abilities, still appears to be seeking a nuclear deal with Iran and wider peace in the Middle East. But talks so far have produced no results and the two countries are locked in an escalating standoff over the Strait of Hormuz.

Following a second round of peace talks in Washington, President Trump announced that the Israel-Lebanon ceasefire had been extended by three weeks.

Iranian forces seized two vessels and fired on three Wednesday, the same day the Pentagon replaced Trump’s pick to oversee the Navy.

The president made the announcement after he hosted a meeting at the White House of Israeli and Lebanese diplomats.

The chairman of the Senate Armed Services Committee, Sen. Roger Wicker (R-Miss.), is urging President Donald Trump to end the ceasefire with Iran and resume bombing the country, while the White House pursues an active peace deal.

Trump says the U.S. won’t use nuclear weapons in a war with Iran and accuses Tehran of rearming during a ceasefire.

President Donald Trump said Iran agreed not to execute eight women after he demanded their release. Talks between the U.S. and Iran in Pakistan are uncertain. Israel and Lebanon are slated to hold a second round of negotiations in Washington,