Israeli airstrikes fired in the Gaza strip assassinated Hamas' military commander and others. (Creative Commons)

CBS News correspondent Allen Pizzey and his team who are on the scene, also reported that signs around them indicated the possibility of a fight breaking out.  

CBS:

“As dawn broke in the Israeli town of Sderot, on the Gaza border, the extent of the force massed along the frontier made it clear Israel was preparing for a ground fight.

Tensions have continued to grow more and more strained between Israel and Gaza in the past three days of aerial bombing since Hamas' military chief was assassinated on Wednesday. The temporary ceasefire made this morning on the request of Egypt has already dissolved after both sides accused the other of violating the truce, the Guardian reported.

Hamas militants have fired at least one rocket at Jerusalem, the first time the city has been targeted for decades, BBC News reported.

The Cairo government has recalled its ambassador in protest and sent its prime minister, Hesham Kandil, to Gaza in a show of solidarity with the Palestinian territory's militant Hamas rulers, CBS News reported.

According to CNN, the Israeli military reported that at least 422 rockets from Gaza have been fired into Israel since Wednesday, while sources with Hamas, which controls the government in Gaza, and Palestinian Islamic Jihad said that more than 140 strikes have hit Gaza.

At least 27 Palestinians and three Israelis have been killed since the start of the escalated conflict on Wednesday, BBC News reported.  

Former U.S. envoy to the Middle East George Mitchell told "CBS This Morning" that the biggest danger to Israel in the current clashes was that they could draw in Hezbollah, a group in Iran that has superior firepower to Hamas, which Mitchell says, could hit almost anywhere inside Israel.

Read more of Neon Tommy's coverage of the Israel-Gaza Strip conflict here.

Reach Executive Producer Jackie Mansky here.