"What hinders the work of civil defense crews is the lack of the necessary amounts of fuel to operate rainwater pumps and move rescue vehicles to flooded areas," the spokesman said.
With water standing in the tents, diseases are likely to be spread, he added.
Hosni Muhanna, coordinator of the Union of Gaza Strip Municipalities, said rainwater mixed with sewage was overflowing the Sheikh Radwan and Abu Rashid ponds, north of Gaza City.
