The US asked Lebanon to declare a unilateral ceasefire with Israel to revive stalled talks to end hostilities between Israel and Hezbollah, a senior Lebanese political source and a senior diplomat said — a claim denied by Lebanon’s prime minister, Reuters reports.

They said the effort was communicated by US envoy Amos Hochstein to Lebanese caretaker Prime Minister Najib Mikati this week, as the US stepped up diplomatic efforts for a ceasefire between Israel and Iran-backed militant group Hezbollah.

Mikati’s office in a statement to Reuters denied the US had asked Lebanon to declare a unilateral ceasefire. It said the government’s stance was clear on seeking a ceasefire from both sides, and the implementation of UN Security Council Resolution 1701, which ended the last round of conflict between the two foes in 2006.

The US embassy in Beirut did not immediately respond to requests for comment.

The sources said the US sought to persuade Beirut to take back some initiative in the talks, particularly given the perception that Israel will likely continue military operations that have already killed most of Hezbollah’s leadership and destroyed much of the country’s south.