Israel launched a series of strikes in Gaza on Sunday and said it was halting aid into the enclave in response to attacks on its forces, the military said, in the most serious test yet of this month’s U.S.-brokered ceasefire.

Residents in Gaza and local health authorities said Israeli airstrikes and tank fire across the enclave killed at least 18 people, including at least one woman.

The Israeli military said it struck Hamas targets including a tunnel, weapons depots and its militants.

Israeli Prime Minister Benjamin Netanyahu said he had ordered the military to respond forcefully to what he described as Hamas’ violations of the ceasefire. The military said militants in the southern area of Rafah had launched an anti-tank missile and fired on its soldiers.

Path to Peace Is Uncertain

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