Israeli strikes killed dozens of people including children on Sunday in Lebanon and isolated northern Gaza, as the world watched for signs of how the U.S. election might affect the wars between Israel and Iranian-backed militant groups Hamas and Hezbollah.

DEIR AL-BALAH, Gaza Strip — Israeli strikes killed dozens of people including children on Sunday in Lebanon and northern Gaza, where the military has waged a major offensive for more than a month that aid groups say has worsened the humanitarian crisis in the besieged enclave.