President Trump says US Navy will begin blockade of Strait of Hormuz

Iran's Deputy Foreign Minister Saeed Khatibzadeh on Thursday condemned Israel's expanding attacks on Lebanon, telling BBC News that Tehran had communicated its anger over Wednesday's intense strikes to the White House.

"You cannot have your cake and eat it at the same time," Khatibzadeh said, adding that the message was sent to Washington following Israel's wave of attacks on Lebanon that began shortly after the announcement of the ceasefire between the U.S., Israel and Iran.

"You cannot ask for a ceasefire and then accept terms and conditions, accept all the areas that a ceasefire is applied to and name Lebanon, exactly Lebanon, and then your ally just starts a massacre," Khatibzadeh said, referring to Israel.

The U.S., he added, must choose whether it wants "war or peace." Khatibzadeh continued, "They cannot have it both at the same time. They are mutually exclusive, it is quite clear."

Asked if Iran will pull out of peace talks in Pakistan if Israel continues to strike Lebanon, Khatibzadeh replied, "We are very much focusing on the wellbeing of the Middle East."

Israeli Prime Minister Benjamin Netanyahu and Vice President JD Vance have said Lebanon was not included in the two-week ceasefire agreement announced on Tuesday.

Pakistani Prime Minister Shehbaz Sharif, though, said in his announcement of the truce that Lebanon was covered.

Flags were lowered to half-mast at the Presidential Palace in Beirut and across the country, as Lebanon marked a day of national mourning following Wednesday's Israeli bombardment in Beirut and other parts of the country.

A meeting of President Joseph Aoun's cabinet began with a minute's silence to mark the killings, the president's office said in a post to X.

Lebanon's Ministry of Health said at least 203 people were killed in the attacks, with more than 1,000 people injured. Many funerals are expected to take place in Lebanon on Thursday.

In statements posted to Telegram on Thursday, Hezbollah claimed to have fired rockets toward northern Israel, targeted an Israeli military vessel with an anti-ship missile and launched several attacks on Israeli forces operating in southern Lebanon.

-ABC News' Ghazi Balkiz and Joe Simonetti

The Israel Defense Forces said in a post to X on Thursday that it killed the nephew and personal secretary of Hezbollah Secretary-General Naim Qassem in strikes on Beirut on Wednesday.

Ali Yusuf Kharshi, the IDF said, was a close associate and adviser to Qassem and "played a central role in managing his office and providing his security."

Israeli strikes killed at least 182 people in Lebanon on Wednesday, according to the Lebanese Ministry of Public Health.

President Donald Trump said in a post to social media late on Wednesday that all U.S. military assets in the Middle East will remain in place until an agreement is reached to end the war in Iran.

"All U.S. Ships, Aircraft, and Military Personnel, with additional Ammunition, Weaponry, and anything else that is appropriate and necessary for the lethal prosecution and destruction of an already substantially degraded Enemy, will remain in place in, and around, Iran, until such time as the REAL AGREEMENT reached is fully complied with," Trump wrote.

The president also vowed "bigger, and better, and stronger than anyone has ever seen before" military action against Iran if a full end to the war is not agreed to during the two-week ceasefire.

Trump said again that Iran will not have access to nuclear weapons and that the Strait of Hormuz will be fully opened.

"If for any reason it is not, which is highly unlikely, then the 'Shootin' Starts,'" he wrote. "It was agreed, a long time ago, and despite all of the fake rhetoric to the contrary -- NO NUCLEAR WEAPONS and, the Strait of Hormuz WILL BE OPEN & SAFE."

"In the meantime our great Military is Loading Up and Resting, looking forward, actually, to its next Conquest. AMERICA IS BACK!" the president wrote.

Trump also pushed back on reporting over Iran's 10-point peace proposal, which Tehran said will form the basis of negotiations in Pakistan this weekend.

Trump alleged that reporting of Iran's plan was "totally FAKE," a "hoax," and "meant to discredit the people involved in the peace process."

Among Iran's 10 points -- which have been published by Iranian state media and cited by Iran's Supreme National Security Council, plus Iranian parliament speaker Mohammad Bagher Ghalibaf -- are the lifting of all sanctions on Iran, continued Iranian control of the Strait of Hormuz and U.S. military withdrawal from the Middle East.

-ABC News' Alex Ederson