Iran live updates: IRGC says it seized 2 vessels in Strait of Hormuz

President Donald Trump doubled down on his claim that Iran wants the Strait of Hormuz opened in a post to social media on Tuesday, shortly after he announced an open-ended extension of the ceasefire with Tehran.

"Iran is collapsing financially!" Trump wrote. "They want the Strait of Hormuz opened immediately -- Starving for cash!"

In an earlier social media post, Trump insisted that Iran is "losing" because of the U.S. blockade in the Strait of Hormuz. The president also claimed that Iran only wants to close the Strait in order to "save face."

Without specifying who, Trump also claimed that "people" told him "four days ago" that Iran wants to reopen the Strait, but he declined to lift the blockade because he says this is the U.S.' leverage point to secure a deal.

"But if we do that, there can never be a Deal with Iran, unless we blow up the rest of their Country, their leaders included!" Trump wrote.

The president also again extolled recent American military achievements in Iran. "Their entire Navy is at the bottom of the Sea, their Air Force is gone, their Anti Aircraft and Radar is wiped out, their Nuclear Labs and Storage Areas were OBLITERATED late one dark June evening by our Great B-2 Bombers, their leaders are DEAD," Trump wrote.

-ABC News' Meghan Mistry and Emily Chang

Pakistani Prime Minister Shehbaz Sharif thanked President Donald Trump for extending the ceasefire "to allow ongoing diplomatic efforts to take their course."

He called on both sides to continue to observe the ceasefire and said Pakistan will "continue its earnest efforts for negotiated settlement of conflict."

According to a White House official, Vice President JD Vance won't be traveling to Pakistan on Tuesday.

"In light of President Trump's TRUTH Social post confirming the United States is awaiting a unified proposal from the Iranians, the trip to Pakistan will not be happening today," the official said. "Any further updates on in-person meetings will be announced by the White House."

-ABC News' Emily Chang

The Iran-backed Lebanese militant group Hezbollah said it fired rockets and drones at Israeli forces on Tuesday for the first time since a 10-day truce took effect Friday "in response to the blatant and documented violations" by Israel.

The alleged violations included "attacks on civilians and the destruction of their homes and villages in southern Lebanon," Hezbollah said in a statement.

The Israel Defense Forces said it responded by striking Hezbollah's rocket launcher.

"The launches constitute a blatant violation of the ceasefire agreement," the IDF said.