The IDF said on Saturday Gaza-based militants had used up or lost about half of their rockets in 12 days of fighting - though the Islamist fighters say they have been replenishing their arsenal.
The Israeli military said Palestinian fighters had fired at least 1,705 rockets out of an estimated stockpile of about 10,000, a depletion of about 17 percent.
"I think that we have hit and destroyed 30 to 40 percent of the rockets," chief military spokesman Brigadier-General Moti Almoz said, referring to an Israeli offensive on Gaza that escalated on Thursday.