At least 30 people have been killed and hundreds wounded as Israel pounded the Gaza Strip with hundreds of air strikes overnight, a Hamas government official said on Wednesday.
Dozens of residential buildings, factories, mosques and shops were hit, the head of the government's media office, Salama Marouf, told the media.
The Israeli military confirmed it had hit several Hamas targets during the night.
It said fighter jets destroyed "advanced detection systems" that Hamas used to spot military aircraft.
Agence France-Presse