About 50 people were killed, including five medical staff, near Kamal Adwan Hospital in northern Gaza after an airstrike on a building “adjacent to the hospital,” the Palestinian Ministry of Health and the hospital's director said Thursday.

In a statement to ABC News, the Israel Defense Forces said it “operates against terrorists and terrorist infrastructure in the area of Jabalia and continued its operations over the last day" and is "unaware" of a strike in the area of the hospital.

"The claims that five doctors were killed in the area are being examined," the statement continued. "The number of casualties reported in the media does not align with the information held by the IDF."

Kamal Adwan Hospital, in the city of Beit Lahia, has reported multiple attacks by Israeli forces over the past week.

In Gaza City, 15 people were killed and at least 60 people were injured after various attacks in neighborhoods, the Hamas-run Gaza Civil Defense said in a statement Thursday.

The Israeli Air Force conducted a "precise strike" on two Hamas operatives in Gaza City "in recent days," the IDF said Thursday.

"Prior to the strike, numerous steps were taken to mitigate the risk of harming civilians, including the use of precise munitions, aerial surveillance, and additional intelligence," the IDF said in a statement.

-ABC News' Diaa Ostaz and Bruno Nota

World Health Organization Director-General Tedros Adhanom Ghebreyesus said he and his team were about to board a flight in Sana'a, Yemen, when the airport came under "aerial bombardment" on Thursday.

He and his WHO and UN colleagues are safe after the attack but "at least two people were reported killed at the airport," Ghebreyesus said in a post on X.

The air traffic control tower, departure lounge and runway at the airport were damaged, he added.

Ghebreyesus and his team were on a mission in Yemen to "negotiate the release of UN staff detainees and to assess the health and humanitarian situation in Yemen," the WHO leader said.

Targeting the Sana’a International Airport and other civilian infrastructure in Yemen is a "crime against all the Yemeni people," Houthi spokesman Mohammad Abdul Salam said in a statement following Israel's attacks.

"If the Zionist enemy thinks that its crimes will stop Yemen from supporting Gaza, it is delusional," Abdul Salam said.

The Israel Defense Forces said following Thursday's strikes that they were targeting "military infrastructure used by the Houthi terrorist regime for its military activities," including in the Sana'a International Airport.

Israeli Prime Minister Benjamin Netanyahu warned in a statement Thursday that Israel will continue attacks against the Houthis to "cut off the terrorist arm of Iran's axis of evil" until the job is done.

Israeli Defense Minister Israel Katz also said in a statement Thursday that Israel will "hunt down all of the Houthis' leaders and we will strike them just as we have done in other places."

-ABC News' Victoria Beaule, Ahmed Baider and Dana Savir

Four people were killed and at least 18 people were wounded in Yemen after Israeli attacks in Sana’a and Hodeida on Thursday, according to preliminary information from Yemen’s Ministry of Health.

-ABC News' Nasser Atta

Fourteen members of the Syrian security forces, part of Syrian de-facto leader Ahmad al-Sharaa’s militia, were killed and 10 were wounded after "being ambushed" by supporters of ousted former Syrian President Bashar al-Assad in the countryside of Tartus on Syria's western coast, the Syrian minister of the interior said Thursday.

There were wide-scale clashes Wednesday between al-Sharaa's forces and supporters of al-Assad in six cities across Syria including Latakia, Tartus, Jableh, Homs and some parts of Damascus. Curfew was imposed on six cities and reinforcements are being sent to the Syrian coastal area.

-ABC News' Nasser Atta