At least 40 people have been killed since Hamas launched its Saturday morning surprise attack on Israel, the country's emergency service said. Another 779 people have been wounded, according to the Israeli Health Ministry.

The Israel Defense Forces have released video of what it says are airstrikes on Hamas in Gaza in the last few hours.

Aerial video of the missile attacks released by the IDF show the powerful explosions caused by the strikes. Among the targets are what appear to be a power line and several individuals running

Inside Gaza, the roar of Israeli warplanes could be heard followed by loud explosions and rising plumes of black smoke.

Gaza's streets on Saturday have been mostly devoid of cars and people. Streets were empty as people had gathered in shops, bakeries and gas stations to load up on supplies.
Prime Minister Benjamin Netanyahu said he hopes Israel's response to the Hamas incursion on Saturday will "exact a huge price" from the militant group.

Speaking at the beginning of a political-security cabinet meeting, Netanyahu said the following:

 "Since this morning, the State of Israel has been at war. Our first goal is first of all to cleanse the area of the enemy forces that have infiltrated and restore security and peace to the towns that were attacked.
 
The second goal, at the same time, is to exact a huge price from the enemy, also in the Gaza Strip. The third goal is to fortify other arenas so that no one makes the mistake of joining this war.
 
We are at war, in war you have to keep calm. I call on all citizens of Israel to unite, to achieve our highest goal -- victory in the war.'  CNN