Israeli aircraft have struck Hamas government buildings in Gaza, including the offices of Prime Minister Ismail Haniyeh after the city suffered overnight air strikes. This comes after Israel’s cabinet gave the go ahead to call up 75,000 reservists for a possible ground invasion in response to Palestinian militants firing towards the country. Since Wednesday when Israel killed Hamas’s military chief, officials say at least 30 Palestinians have died including several children. Three Israelis were killed in a rocket attack on Thursday. US President Barack Obama has spoken with both Egypts’s President Mohamed Morsi commending his efforts to start negotiating a truce while discussing ways of de-escalating the situation with Israel’s Prime Minister Benjamin Netanyahu. Hamas claimed responsibility for firing at Tel Aviv and, for the first time in decades, Jerusalem. The last time a Palestinian rocket hit the city was in 1970.