Lokman Slim, known for his opposition to the Shia movement, has been found dead in his car in the country’s south, officials say.

A prominent Lebanese activist known for his opposition to Hezbollah has been found dead in his car in the country’s south, security officials and local media said.

Lokman Slim had not been heard from by his family since getting in his car on Wednesday evening to drive back to Beirut.

“He was found dead in his car, killed by a bullet to the head,” an official told the AFP news agency on Thursday on condition of anonymity.

Another source told the Reuters news agency the activist and publisher who ran a research centre was shot and killed and the motive was not immediately clear.

Lebanese media also reported his death.