Israeli Prime Minister Benjamin Netanyahu said his country had a "duty to take whatever action necessary" to defend the people of Southern Israel from rocket attacks from Gaza.
The Israeli military says Gaza militants launched 10 rockets into southern Israel today, though there have been no reported casualties.
Earlier today Israeli aircraft struck three militant sites across Gaza, it is not known yet if anyone was killed.
More top news
US-backed rebel fighters say they have taken control of a key airbase near the so-called Islamic State's stronghold of Raqqa.
A primary school has taken action after pupils brought in an variety of "worrying" packed lunches - including a two-day-old McDonalds.
A 30-year-old man was arrested in Birmingham on Sunday on suspicion of preparing terrorist acts.