The state-run National News Agency (NNA) said the man, a dentist from the border village of Qlayaa, "was killed with his son and daughter when a enemy drone targeted his car on the Nabatieh-Khardali road".

Father Antonios Farah, a priest for the Qlayaa parish where some people are still holding out despite sweeping Israeli evacuation orders to leave, told AFP that the man had been returning home with his son and daughter, both in their early 20s, after they did university exams.

"The man and his two children went to the university in the morning so they could do their examinations, and on their way back the Israeli drone hit their car," he said.

"We don't understand why this happened," he said, adding that a bible and prayer book were found in the heavily damaged car.

"He's a dentist and his children are university students... this is extremely sad news for the village, everyone is suffering," he added.

The NNA reported Israeli airstrikes on dozens of south Lebanon locations on Monday.

Lebanon's health ministry said that Israeli attacks have killed at least 3,433 people and wounded 10,395 others since the latest war with Hezbollah erupted on March 2.