Politics 17 November 2012 Ground invasion of Gaza by Israel more likely as rocket attacks continue Hamas HQ hit on fourth day of Israeli air strikes on Gaza. Sign up for our weekly email * Print HTML Speculation is growing that a ground invasion by Israel in Gaza is becoming increasingly likely. The BBC is reporting that Israel has put 75,000 reservists on stand-by, and deputy foreign minister Danny Ayalon told CNN that an invasion could happen before the end of the weekend: "We don't want to get into Gaza if we don't have to. But if they keep firing at us … a ground operation is still on the cards," he said. "If we see in the next 24 to 36 hours more rockets launched at us, I think that would be the trigger." Watch his interview in full: Israeli air strikes are continuing on the Gaza strip. Reuters reports that the office building of Prime Minister Ismail Haniyeh - where he had met on Friday with the Egyptian prime minister - was hit, as was the house of a Hamas leader in Jabaliya, north of Gaza City. Egypt's president, Mohammed Morsi, called the attacks on Gaza "a blatant aggression against humanity" and said that "Egypt will not leave Gaza on its own". President Obama has praised Egypt's efforts to "deescalate" the tensions in the region. The hundreds of tunnels in the south of Gaza, which are used to smuggle food, fuel and weapons from Egypt, have also been targeted by Israeli air strikes, the Guardian reports. The Israeli military say that over 800 targets have been struck since the operation began (Associated Press). It's thought that about 500 rockets have been fired towards Israel. At least 38 Palestinians and three Israelis have died since Israel killed Hamas's military commander on Wednesday. › Morning call: the pick of the papers A plume of smoke rises over Gaza during an Israeli air strike, as seen from Sderot. Photograph: Getty Images Caroline Crampton is assistant editor of the New Statesman. She writes a weekly podcast column. Subscribe from just £1 per issue More Related articles What the debate over troops on the streets is missing The problems with ending encryption to fight terrorism How long will general election campaigning be suspended after the Manchester attack?