Egypt reports three rockets fired from Gaza into Israel in past three days . Warplanes bomb buildings in Gaza City overnight . `` Hamas bears principal responsibility for the current crisis . Both sides tweet photos of people struck by the violence . Egyptian government , delegation head to Gaza on Friday morning .
Egypt reports three rockets fired from Gaza into Israel in past three days . Warplanes bomb buildings in Gaza City overnight . Both sides tweet photos of people struck by the violence . Egyptian government , delegation head to Gaza on Friday morning .