The U.S. deputy special envoy for the Middle East Friday said that Hezbollah's presence in Lebanon's new government was a red line, welcoming the end of the Iran-backed group's "reign of terror".

"We have set clear red lines in the United States that they (Hezbollah) won't be able to terrorize the Lebanese people, and that includes by being a part of the government," Morgan Ortagus said after meeting Lebanese President Joseph Aoun in Beirut, adding: "the end of Hezbollah's reign of terror in Lebanon and around the world has started and it's over".