Lebanon's Hezbollah warned Israeli residents to evacuate towns within 5 km of the border between the countries in a message posted on its Telegram channel in Hebrew early on Friday.
Hezbollah's message came less than a day after Israel warned residents to leave Beirut's southern suburbs, prompting an exodus from a swathe of the capital known as Dahiyeh.
Lebanon was pulled into the war in the Middle East on Monday, when Hezbollah opened fire, sparking Israeli airstrikes focused on Beirut's southern suburbs and on southern and eastern Lebanon.
"Your military's aggression against Lebanese sovereignty and safe citizens, the destruction of civilian infrastructure and the expulsion campaign it is carrying out will not go unchallenged," Hezbollah said.
Israel has said it will not evacuate its border towns and has sent more soldiers into Lebanon, saying this was a defensive measure meant to protect its citizens who live nearby.

Iran says no final decision made on deal
Two killed, 10 injured in Ukraine attack on Russia's border Bryansk region
Trump cancels US strikes on Iran, citing progress in talks
South Korea court sentences ex-President Yoon to 30-year jail term in drone case
Thai king's eldest daughter dies, aged 47, after long illness
