Trump says damage to Iran's nuclear sites is 'far below ground level'

Russia warned that "military intervention" by the United States in Iran "would be an extremely dangerous step with truly unpredictable negative consequences," Maria Zakharova, a spokesperson for the Russian Foreign Ministry, said in a statement Thursday.

She also addressed Israeli strikes on Iranian nuclear facilities, singling out facilities where Russian specialists work.

"Russia calls on the Israeli leadership to immediately stop raids on nuclear facilities and sites that are under guarantees and are subject to IAEA verification activities," Zakharova said. "We are particularly concerned about the safety of the Bushehr nuclear power plant, which involves Russian specialists," Zakharova added.

"Today, the main thing is to prevent further escalation of violence, achieve a ceasefire and restore peace, which, in turn, will create the conditions for a return to negotiations. We are ready to contribute to this in every way and are making political and diplomatic efforts in this direction," Zakharova said.

-ABC News' Anna Sergeeva

Israeli Defense Minister Israel Katz spoke about Iranian Supreme Leader Ayatollah Ali Khamenei on Thursday, saying a "dictator like Khamenei … cannot continue to exist," while speaking at the scene of the Iranian strike on Soroka hospital in Beersheba.

"We set the war goals to remove nuclear and destruction and missile threats, and in them the IDF was instructed and knows that in order to achieve that, within the overall targets, this man should not continue to exist," Katz said.

The director of the Soroka Medical Center in Beersheba, Israel, said Thursday there was "extensive" damage to the facility following an Iranian ballistic missile strike.

Speaking to journalists outside the hospital, Professor Shlomi Kodesh said the attack "hit one of our admission buildings. The surgical northern building was hit directly by a rocket."

"As a result of this hit, fire broke out in this building, several wards were completely demolished, and there was extensive damage across the entire hospital, with damage to buildings, structures, windows, ceilings across the medical center," Kodesh said.

Kodesh said the building that was hit had been evacuated "in the past few days" and the area the missile hit directly was empty. He said 40 people were injured across the hospital.

-ABC News' Victoria Beaule

President Donald Trump is scheduled on Thursday to receive an intelligence briefing at 11:30 a.m. ET in the Situation Room, according to the White House.

-ABC News' Kelsey Walsh