DUBAI, United Arab Emirates (AP) — In a potential boost to Middle East ceasefire efforts, Israeli Prime Minister Benjamin Netanyahu said Thursday that he authorized direct negotiations with Lebanon “as soon as possible” aimed at disarming Iranian-backed Hezbollah militants and establishing relations between the neighbors.

Israel and Lebanon have technically been at war since Israel was established in 1948, and Netanyahu later stressed that there was no ceasefire between them. In a video statement, he said Israel will keep striking Hezbollah until security is restored in northern Israel.

There was no immediate response from Lebanon. But Israel-Lebanon negotiations were expected to begin next week at the State Department in Washington, according to a U.S. official and a person familiar with the plans, who spoke on condition of anonymity due to the delicacy of the matter.

The prospect of talks appeared to bolster the tentative ceasefire in the Iran war that has staggered under the weight of Israel’s bombardment of Beirut, Tehran’s continued chokehold on the Strait of Hormuz and uncertainty over whether talks can find common ground.

However later Thursday, U.S. President Donald Trump appeared to cast doubt on the effectiveness of the ceasefire, writing on his social media platform: “Iran is doing a very poor job, dishonorable some would say, of allowing Oil to go through the Strait of Hormuz.”

“That is not the agreement we have!” Trump wrote.

Netanyahu’s authorization of negotiations with Lebanon came amid disagreement over whether the ceasefire deal included a pause in fighting between Israel and Hezbollah, and a day after Israel pounded Beirut with airstrikes, the deadliest day in Lebanon since the war began Feb. 28.

Israel has fought multiple wars and launched several major invasions of Lebanon over the years, most recently sending in troops last month in response to Hezbollah fire on Israel’s northern border communities.

The launch of direct peace talks is a significant achievement, though reaching an agreement will be difficult after decades of hostilities, Hezbollah’s continued presence and longstanding disagreements over the countries’ shared land border.

The talks in Washington are expected to be handled on the American side by the U.S. ambassador to Lebanon, Michel Issa, and on the Israeli side by the Israeli ambassador to the U.S., Yechiel Leiter, according to the person familiar with the planning.

It was not immediately clear who would represent Lebanon. The timing and location of the talks was first reported by Axios.

After declaring victory with the ceasefire announcement, both Iran and the U.S. have appeared to apply pressure on each other. Semiofficial news agencies in Iran suggested forces have mined the Strait of Hormuz, a crucial waterway for oil that Tehran has closed. Trump warned that U.S. forces would hit Iran harder than before if it did not fulfill the agreement.

Trump expressed concern again Thursday over reports that Iran’s military was charging tolls on tankers seeking to pass through the strait. “They better not be and, if they are, they better stop now!” he wrote on social media.

Questions also remained over what will happen to Iran’s stockpile of enriched uranium at the heart of tensions, how and when normal traffic will resume through the strait, and what happens to Iran’s ability to launch future missile attacks and support armed proxies in the region.

Iranian President Masoud Pezeshkian said in a message on Telegram that Iran’s decision to accept a ceasefire “is not a sign of weakness but a way to solidify Iran’s proud victories.”

Despite disputes over the ceasefire, it appears to have halted weeks of missile and drone attacks by Iran on its Gulf Arab neighbors and Israel, with no new launches reported Thursday. There were no reports of strikes by the U.S. or Israel targeting Iran.