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.

Israel has stepped up strikes on the city’s southern suburbs in recent days, an area Israeli officials say hosts Hezbollah militants and infrastructure.

The deaths on Wednesday made it one of the most lethal days for the Israeli military since it invaded Lebanon last month to battle Hezbollah fighters.