The United Nations’ highest court ruled Wednesday that it can hear a case brought by Iran against the United States in a bid to end sanctions the Trump administration re-imposed in 2018 after pulling out of an international deal aimed at curtailing Tehran’s nuclear program.

Lawyers for the United States argued at hearings last year that the case should be thrown out by the International Court of Justice for lack of jurisdiction and admissibility.

However, the court’s president, Abdulqawi Ahmed Yusuf, said that judges rejected U.S. arguments.

Iranian Foreign Minister Mohammad Javad Zarif called Wednesday’s ruling “another legal victory for Iran.”

“Iran has always fully respected int’l law,” he wrote on Twitter. “High time for the US to live up to 𝙞𝙩𝙨 int’l obligations.”

State Department spokesman Ned Price said the U.S. was disappointed by the decision, but stressed it came at a preliminary state in the case.

“In the next days of this case we’ll explain why Iran’s claim has no merits,” he added. “We remain clear-eyed about the dangers posed by Iran’s malign activities and that’s again why we’re undertaking the important diplomacy that we are at the moment.”

Iran filed the case in July 2018 a few months after then-President Donald Trump said he was pulling the U.S. out of a 2015 international agreement over Iran’s nuclear program and would re-impose sanctions on Tehran. Washington also threatened other countries with sanctions if they don’t cut off Iranian oil imports by early November.

In its case, Iran alleges that the sanctions breach a 1955 bilateral agreement known as the Treaty of Amity that regulates and promotes economic and consular ties between the two countries.

The ruling Wednesday comes as new President Joe Biden is seeking to enhance diplomacy toward Iran while Washington looks at restoring constraints on the country’s nuclear program and reining in its regional ambitions.

Secretary of State Antony Blinken appointed a new special envoy for Iran on Friday as Biden’s national security adviser said that restoring limits on the Iranian nuclear program is a top administration priority.

The court based in The Hague had ruled in favor of Iran at an earlier stage, saying in a preliminary ruling in October 2018, that Washington should “remove, by means of its choosing, any impediments arising from” the re-imposition of sanctions to the export to Iran of medicine and medical devices, food and agricultural commodities and spare parts and equipment necessary to ensure the safety of civil aviation.

The Trump administration responded by pulling out of the treaty.

“The Iranians have been ignoring it for an awfully long time, we ought to have pulled out of it decades ago,” then-Secretary of State Mike Pompeo told reporters at the State Department at the time.

Now that the court has ruled it can hear the case, it will likely take years to reach a conclusion. Rulings by the world court, which settles disputes between nations, are final and legally binding.

(AP)