The attackers detonated their bombs within minutes of each other near a crowded bus station

More than 100 people were injured, many of them visitors to a busy shopping centre

Survivors were helped away from the carnage as the clean-up operation began

Special crews of orthodox Jewish emergency workers removed body parts from the scene

Many of the victims were foreign workers heading home

Hours after the attack Israeli helicopters fired rockets at a factory in Gaza City

Eight people were reported injured in the air strike

Angry Palestinians gathered outside the factory, which Israel said was used to make weapons