Israel said its forces had returned to northern Gaza to fight a Hamas resurgence. That has brought a new round of suffering for residents.

An Israeli airstrike killed at least 23 people in the village of Aalmat, north of Beirut and far from the areas in southern and eastern Lebanon where the militant Hezbollah group has a major presence. Lebanon's Health Ministry said a further six people were wounded. There was no immediate Israeli comment.

Israeli strikes killed dozens of people on Sunday in Lebanon and the northern Gaza Strip, where the military has been waging a major offensive for more than a month that aid groups say has further worsened the humanitarian crisis in the besieged enclave.