MARJAYOUN, Lebanon (AP) — Israeli strikes have killed some 100 Lebanese in the deadliest and most intense barrage in nearly a year.

The strikes happened Monday as the Israeli military warned residents in southern and eastern Lebanon to evacuate their homes ahead of a widening air campaign against Hezbollah.

Thousands of Lebanese fled the south, and the main highway out of the southern port city of Sidon was jammed with cars heading toward Beirut in the biggest exodus since the 2006 Israel-Hezbollah war.

The Israeli military announced that it hit some 300 targets, saying it was going after Hezbollah weapons sites.