TEL AVIV—Israel launched more airstrikes early Monday in the Gaza Strip targeting what its military said was a tunnel network used by Hamas, as it tries to blunt the militant group’s ability to attack Israeli territory.
The two sides continued to trade fire despite international calls to bring the fighting to an end.
The Israeli military said a 20-minute overnight assault with 54 warplanes hit roughly 9 miles of underground passageways it says are used to ferry weapons and fighters across Gaza. Israel has dubbed the subterranean network Hamas’s “metro.”
Yahya al-Sarraj, the mayor of Gaza City, the strip’s biggest population center, said the strikes hadn’t targeted military positions and instead hit roads and civil infrastructure, setting the economy back years. He called the strikes collective punishment and asked the international community to stop assaults on vital infrastructure in Gaza.
Hamas also fired scores more rockets toward Israel overnight and…