The Israel Defence Forces warned residents of Southern Lebanon on Tuesday not to venture south of the Litani River, hours after IDF tanks rolled across the border to begin a limited ground operation against Hezbollah.

“Intense fighting is ongoing in Southern Lebanon, during which Hezbollah militants are using the civilian environment and population as human shields to launch attacks,” Lt. Col. Avichay Adraee, head of the Arab Media Branch in the IDF Spokesperson’s Unit, tweeted in Arabic.