Yehiya Sinwar, Hamas’ leader in Gaza, pictured in 2017, is in stable condition, according to Gaza’s Health Ministry.

Yehiya Sinwar, a top Hamas official in Gaza, listens to Khaled Mashaal, the outgoing Hamas leader in exile, during his news conference in Doha, Qatar, while display on a screen at Commodore hotel in Gaza City, Monday, May 1, 2017. The Islamic militant Hamas on Monday unveiled what had been billed as a new, seemingly more pragmatic political program aimed at ending the group’s international isolation. (AP Photo/Adel Hana)