Air-raid sirens sounded in Tel Aviv on Thursday evening, as two missiles were registered incoming from the Gaza Strip.
After air raid sirens howled throughout Tel Aviv and surrounding towns, Reuters journalists heard several explosions in Israel's coastal conurbation.
The IDF said Israel's Iron Dome anti-missile system intercepted one of the rockets and another landed in an open area - usually a reference to the Mediterranean Sea.
"Hamas has been shooting rockets at the southern part of Israel for roughly a year now and now they shot two rockets at the Tel Aviv area".
Prime Minister Benjamin Netanyahu called an emergency security meeting in the Kirya military headquarters following the event.
"This was basically a surprise", military spokesman Brigadier-General Ronen Manelis told Israel Radio. So did Hamas, apparently, with a group's official telling Israeli media that Hamas is "not interested in an escalation" and does not know who fired the two rockets.
Hamas denied involvement for the rocket salvo, which it said took place as its leaders met Egyptian delegates about efforts to secure a long-term ceasefire with Israel.
Earlier this week, Israel struck Hamas targets in Gaza in response to rocket fire on southern Israel, near the border.
Earlier on Thursday, Hamas security forces in Gaza violently dispersed hundreds of Palestinians protesting against dire living conditions.
In addition to Hamas, Gaza is home to other militant groups.