In remarks at the NATO summit in Turkey on Wednesday, President Donald Trump claimed that the Memorandum of Understanding (MOU) between the U.S. and Iran, negotiated last month, was no longer in effect, citing the resumption of military attacks between the two countries.

Trump’s comments come as the U.S. and Iran have exchanged fire over the past several days, with U.S. Central Command announcing on Tuesday night that they had completed strikes on around 80 targets.

The president was visibly upset when responding to questions from reporters about the war.

“I think it’s over. I don’t want to deal with them anymore,” Trump said.

The U.S. president engaged in name-calling against Iran’s leaders, calling them “sick people” and “scum” — a noted departure from his positive descriptions of them when negotiations were going better.

The MOU was not a final peace deal, but rather an agreement between the U.S. and Iran that aimed to end hostilities while a larger agreement was being brokered. Trump derided Iran for denying negotiated deals he claimed were being made during those discussions.

“We make a deal. They [Iran] go outside, talk to the press, they say ‘we never even talked about it,'” Trump complained.

Over the past month, Trump has made several baseless claims about the dealmaking process without confirmation from Iran, including that Iran had agreed to give up control of the Strait of Hormuz and that the country would agree to destroy its enriched nuclear materials.

Asked whether he would engage in future negotiations with Iran, Trump demurred. “I don’t care,” he said, adding that he’d let “negotiators keep talking if they want, but I don’t see it.”

He also indicated that the U.S. would conduct more military attacks later on. “We hit them very hard last night. Probably hit them hard again tonight,” Trump said.

On Tuesday, Iran’s Foreign Minister Abbas Araghchi warned that the U.S.’s continued threats and attacks against Iran, which violate parts of the MOU, would impede “negotiations on a final deal.”

CENTCOM said it hit 80 targets on Tuesday, with one U.S. official calling the strikes bigger than previous retaliatory ones. While the U.S. insisted its targets are military posts, the attacks are happening near larger cities and close to civilian infrastructure.

Iran media reported explosions near military targets in Bushehr early on Wednesday morning, a port city near the northern edge of the Persian Gulf that has a population close to 250,000 people. The city is home to the only civilian nuclear power plant in the country.

The U.S. also appeared to bomb the city of Bandar Abbas, near the Strait of Hormuz, which has a population of over 526,000 people. Early morning footage showed fires from explosions and large smoke plumes over the city.

And Iranian media said several explosions were seen in Sirik, a port city in the southern part of the country, with attacks reportedly hitting commercial and fishing piers. Several people also suffered injuries from shrapnel due to the attacks.

According to figures compiled by Al Jazeera, around 3,468 Iranians have been killed in the U.S.-Israeli war on Iran since February 28. More than 26,500 Iranians have been injured due to the war. The true number of casualties is likely higher, as the figures were last updated in mid-June.