Israel-Gaza updates: Israeli forces preparing for 'wide range of offensive plans'

At least 30 Israeli police officers have been killed in the fighting, mainly in Sderot, where Hamas gunmen took control of the police station.

Meanwhile, fighting is still ongoing in six places, including Sderot -- which sits just two miles from the border with Gaza -- even after the police headquarters standoff ended and a rocket injured four people on Sunday morning.

On Saturday, graphic video showed dozens of dead bodies, bullet ridden homes and vehicles following an assault by armed militants.

Israel has also opened a hotline for family members who can come forward to give DNA samples to help identify those who have died.

Early Sunday morning, Israel police said in a statement, "The first phase ends in these hours by the destruction of the majority of the enemy forces that penetrated our territory. At the same time we started the offensive formation and it will continue without reservation and without respite until the objectives are achieved."

Israeli police announced the cabinet decided the supply of electricity, fuel and goods to the Gaza Strip will be suspended.

"We will restore security to the citizens of Israel and we will win," Israeli police said.

Senate Majority Leader Chuck Schumer on Saturday spoke with top officials from the Central Intelligence Agency and the State Department during a briefing on the situation in Israel.

Schumer's office released a statement, stating, "The enormous loss of life is gut-wrenching, and I am appalled at the viciousness of the attack by Hamas on innocent Israeli civilians. I expressed my commitment to top Biden Administration officials – and directly to Ambassador Herzog – to do all I can to deliver everything Israel requires in this time of urgent need. I will continue to receive regular briefings."

Schumer is currently overseas in China on a Congressional trip.

The statement continued, "This is one of the worst attacks Israel has ever experienced, and friends of Israel in the US and around the world must stand strongly by her. My heart goes out to those that lost loved ones."

The Federal Aviation Administration issued a statement Saturday night urging U.S. airlines and pilots to "use caution" when flying in Israeli airspace.

In a Notice to Air Missions (NOTAM), the FAA said to exercise extreme caution at all altitudes due to the "ongoing conflict situation between Israel and Gaza."

NOTAM's statement told flight crews to remain in contact with "air traffic control at all times" and to monitor for "possible airspace closures."