Footage capturing the demolitions showed a series of simultaneous explosions in the densely populated camp.
Thick clouds of smoke rose above the Palestinian city where Israeli forces have been conducting a major military operation for nearly two weeks that the military says targets Palestinian militant fighters and the seizure of weapons stockpiles.
Palestinian President Mahmoud Abbas in a statement urged the United States to end Israel's military operation and requested an emergency meeting of the UN Security Council "to stop the ongoing Israeli aggression against the Palestinian people".