Trump calls Strait of Hormuz 'something that we don't need'

Top Iranian Revolutionary Guard Corps commander Ali Fadavi said Wednesday that Iran will not use any missile warhead lighter than 1 ton.

Fadavi claimed that President Donald Trump himself has been pursuing a ceasefire for two nights, he said in an interview on Iranian state TV.

Iran's IRGC aerospace commander Gen. Majid Moosavi had also put forward the claim on one-ton warhead missiles on Monday.

"From now on, no missile with a warhead lighter than one ton will be fired," Mousavi wrote in a post on his X account. "The wavelength of the firings and the wave levels will become longer, and the amplitude of them will become wider," he added.

If Iran's ports are threatened then it will consider "all ports and docks in the region will be our legitimate targets," a spokesperson for Iran's armed forces said Wednesday.

In an interview with the Iranian state TV, Gen. Abolfazl Shekarchi denied claims that the country's navy forces are hiding in economic ports. He threatened of heavier operations if Iran's ports are targeted.

Iran's attacks will continue in the coming days until the U.S. bases in the region are left "defenseless," Gen. Mohammad Akraminia, a spokesman for the Islamic Republic army, said Wednesday.

"The enemy has become incapable of intercepting our missiles and drones, and this process will continue in the coming days until the entire occupied territories and American bases in the region are left defenseless," he said, according to Islamic Republic News Agency.

-ABC News' Maryam Moqaddam and Somayeh Malekian

In light of reports that say the U.S. Department of Defense’s preliminary findings have determined the U.S. is responsible for the strike on the Iranian girls’ school that local officials say killed 168 people, President Donald Trump denied knowledge of such findings.

"I don't know about it," the president said to reporters Wednesday, when asked about the reports, as he departed the White House. Right before the president answered, press secretary Karoline Leavitt -- who was standing next to him -- shook her head and appeared to whisper, "no."

Trump also did not acknowledge a question as to whether he’d take responsibility as commander-in-chief.

Earlier Wednesday, the White House did not comment on the report’s alleged findings, insisting that the investigation remains ongoing and that there are "no conclusions" at this time.

-ABC News' Emily Chang, Fritz Farrow, Michelle Stoddart, Justin Fishel and Selina Wang

A pro-Iran hacking group has claimed responsibility for a cyber attack on Stryker, a U.S. medical technology company, according to SITE Intel.

The hackers, a group called Handala, allegedly deleted company data from over 200,000 systems, servers, mobile devices, and extracted 50 terabytes of "critical data," SITE Intel said.

Handala said the hack was motivated by the U.S. airstrike that struck an Iranian girls' school in Minab as motivation for the cyberattack, SITE Intel said.

Handala has claimed similar breaches amid the Iran war, including against a Saudi oil and gas company, an Israeli insurance company and the Israel Defense Forces.

-ABC News' Josh Margolin