An airstrike hit a building in Khan Younis in southern Gaza in the early hours of Friday, dealing a fresh blow to the nearly four-month ceasefire in the Palestinian territory. Residents were seen walking amid building rubble, using torchlight in the pitch darkness that followed the blast. Israel’s military announced that it had carried out a precise strike in response to shots fired at its soldiers near the yellow line in northern Gaza. The post did not specify where the Israeli strike was carried out. The strike comes days after Israel reopened Gaza’s main border crossing with Egypt, a big step envisaged by the US-backed truce deal