Casualties and attacks in the Israel-Hamas conflict:

—At least 27 Palestinians, both militants and civilians, have been killed in Gaza since the fighting began.

—A rocket fired by Palestinian militants in Gaza killed three Israeli civilians on Thursday.

—A rocket fired from Gaza exploded near Jerusalem on Friday. It caused some damage to buildings in an Arab village.

—Three rockets targeted Tel Aviv, Israel's population center, for the first time Thursday and more exploded in that area on Friday. None caused casualties or damage.

—Gaza militants have fired over 600 rockets at southern Israeli communities since the start of the operation. About 400 exploded inside Israel, the military said.

—Israel says its Iron Dome missile defense system has intercepted about 200 rockets.

—The Israeli military says it has hit more than 600 military targets in Gaza.