Israeli air strikes have targeted the headquarters of Gaza's Hamas leaders, as the bombardment of the coastal enclave moved into a fourth day.
Witnesses reported extensive damage to the building, which Egypt's PM Hisham Qandil had visited on Friday.
At least 30 Palestinians and three Israelis have died since Israel killed Hamas's military chief on Wednesday.
Israel earlier put 75,000 reservists on stand-by amid speculation of a ground invasion.
Militants in Gaza have continued to fire rockets into Israel, aiming at Tel Aviv and Jerusalem on Friday.
Drones over Gaza
After a lull overnight - with correspondents reporting that the area was quiet but for the almost-constant buzz of drones overhead - Gaza City was hit by a string of large explosions shortly after 03:00 (01:00) on Saturday.
There was another series of strikes in and around the city shortly after 05:00, with several targeting Hamas' cabinet buildings. |