"Overnight, Israeli warplanes hit some 100 Hamas targets in Gaza".
The Israeli army said the Hamas is responsible for all events transpiring in the Gaza Strip and emanating from it.
Witnesses said powerful explosions from the air strikes rocked buildings in Gaza and lit the skies over targeted sites.More news: Amazon removes books that promoted an autism 'cure'
Late Thursday, sirens wailed throughout the bustling city of Tel Aviv, sending residents into bomb shelters in a reminder for Israelis of the 2014 war between Israel and Palestinian militants in Gaza.
No Israelis had been reported wounded.
"We can confirm that rockets fired from Gaza at Tel Aviv earlier tonight were launched by the Hama terrorist organization", it said in a tweet. No casualties were reported.
Two rockets struck Tel Aviv late on Thursday, taking Israel's military by surprise.
An initial investigation revealed that the two Iran-made Fajr rockets were launched during a meeting of Hamas officials and the visiting Egyptian mediation team, which suggests that the last thing Hamas wanted at that point was provoking Israel.
Gaza Health Ministry officials said a couple was injured when their house in the southern town of Rafah was damaged.More news: Over $2 million raised in support of Chch attack victims
"We call on our people to commemorate Earth Day and to provide the biggest support for the Return March demonstrations", said the National Commission for the Great March of Return in a statement on Friday, referring to the environmental event also held on 30 March.
The fighting broke out as Egyptian mediators were in Gaza trying to broker an expanded cease-fire deal between the bitter enemies.
About four hours after the launches, the IDF announced it had begun striking targets in Gaza in response. The assessment indicated that Hamas had no intention of escalating violence with Israel.
More than 2,100 Palestinians were killed in Gaza during that war, a lot of them civilians, along with 66 Israeli soldiers and seven civilians in Israel. A smaller militant group that also possesses a large arsenal of rockets, the Iranian-backed Islamic Jihad, also denied involvement.
Israel's Education Minister and security cabinet member Naftali Bennett urged: "The time has come to defeat Hamas and eliminate its leaders, I am calling on the prime minister to convene the cabinet and to force the IDF to present a plan for the destruction of Hamas".More news: Florida does 'just enough' to topple No. 9 LSU