Israeli warplanes attack Gaza naval bases after rocket hits Tel Aviv

has been targeted since a 2014 war. Though the attack caused no damage or injuries, it was a significant escalation and set the stage for a tough Israeli reprisal.

Prime Minister Benjamin Netanyahu called an emergency meeting with his military chief and other top security officials. Shortly after, Israeli warplanes attacked targets in southern and central Gaza.

The blasts were so powerful that smoke could be seen in Gaza City, 25km away from some of the strikes. The Israeli warplanes could be heard roaring through the skies above Gaza City.

The Israeli military said it was targeting ‘‘terror sites’’ in Gaza, but gave no further details. Palestinian media said naval bases belonging to the ruling Hamas group had been struck. There were no immediate reports of casualties.

Minutes later, the Israeli military reported air raid sirens in southern Israel. It said it had identified a launch attempt out of Gaza, but the rocket misfired and landed inside Palestinian territory.

Israel and Hamas are bitter enemies and have fought three wars since the Islamic militant group seized power in Gaza in 2007. Smaller flare-ups have occurred sporadically since Israel and Hamas fought their last war, in 2014.

The sudden outburst of fighting comes at a sensitive time for both sides. Israel is holding national elections in less than a month. Netanyahu is locked in a tight fight for re-election and could face heavy criticism from his opponents if he is seen as ineffective against the militants.

Cabinet Minister Naftali Bennett, a hardline rival of Netanyahu’s, called on the prime minister to convene a gathering of his Security Cabinet and demand the army ‘‘present a plan to defeat Hamas.’’

Likewise, Hamas has come under rare public criticism in Gaza for the harsh conditions in the territory. An Israel-Egyptian blockade, combined with sanctions by the rival Palestinian Authority and mismanagement by the Hamas government, have fuelled an economic crisis in the territory. Residents have little desire for another war with Israel.

Earlier Thursday, Hamas police violently broke up a small protest over the harsh living conditions.

Brigadier General Ronen Manelis, the chief Israeli military spokesman, said the army had been caught off guard by the rocket barrage. He said officials were still trying to determine who had fired the rocket.

Israel holds Hamas responsible for all fire coming out of the territory. Hamas possesses a large arsenal of rockets and missiles capable of striking deep inside Israel.

But with Gaza’s economy in tatters, the group has been seeking to preserve calm. –AP