The first Friday of the Israeli army announced that it had launched air strikes on "terrorist sites in Gaza", a retaliatory move after the rockets accused the Hamas militant group of being sacked in Tel Aviv.
"We have just begun to hit Gaza terrorist sites. Details to follow," Israel Defense Forces (IDF) has tweeted .
The attacks were happening in Khan Younis, about 15 miles south of Gaza City, according to The Associated Press.
A Hamas naval base was targeted, reported the outlet, citing Palestinian media.
After their initial assignment, the military tweeted a "missile alert", explaining that the sirens were triggered at the Eshkol Regional Council.
Armed forces later added that "the rockets fired from #Gaza to #TelAviv this evening were launched from the Hamas terrorist organization."
"Sirens playing in southern Israel," a follow-up tweet said.
ROCKETS FIRED TO TEL AVIV, SIRENS AIR RAID TRIGGER
Israel's response came after the IDF previously confirmed that two bullets were launched in Tel Aviv Thursday evening from the Strip of Gaza controlled by Hamas.
Israeli media initially reported that one of the missiles was intercepted by the country's Iron Dome missile defense system. However, the IDF later said that neither of the rockets was, adding that they had landed at sea or in open land.
People living in the area reported hearing an explosion in addition to the sirens. It is unclear what caused the explosion.
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There were no early warnings about the attack and the officials were working to figure out who launched the rockets, Brig. General Ronen Manelis, the spokesman for the Israeli army, said.
There was no immediate liability claim.
This is a developing story. Please check for updates.
Fox News Samuel Chamberlain and The Associated Press contributed to this report.