The World Health Organization (WHO) says Al-Shifa hospital in Gaza City is not functioning as a hospital anymore.
According to WHO, constant gunfire and bombings in the area have intensified and has exacerbated thealready critical circumstances”.
The BBC has seen pictures of at least 20 newborn babies being kept in a surgical theatre at the site.
The Israeli military says it has agreed to help evacuate babies from the hospital to a “safer” facility but denies Al-Shifa has lost power.
Hospitals across Gaza are running out of electricity and supplies, with staff working in dire conditions while thousands of residents pack into medical centers, seeking shelter from a seemingly endless barrage of Israeli airstrikes.
The Palestinian Ministry of Health in Ramallah says it has lost contact with northern Gaza hospitals while Gaza’s second-largest hospital — Al-Quds in Gaza City — is no longer operational, according to the Palestine Red Crescent Society.
In Gaza’s biggest hospital, Al-Shifa, patients and staff are trapped inside due to fighting nearby, according to health officials and aid agencies.
The hospital is rapidly running out of electricity, food and medical supplies.
Israel began striking Gaza after the Hamas attacks on 7 October, which saw 1,200 people killed and more than 200 taken hostage.
The Hamas-run health ministry says more than 11,000 people have been killed in Gaza, with more than 4,500 being children.