The Central Military Media said on Wednesday that Brig. Gen. Issam Zahreddine was killed in Hawija Saqr, east of Deir el-Zour, in operations against IS militants.
The Lebanese Al-Manar TV, which is close to the Syrian government, said a land mine killed him.
Zahreddine was a key commander in the Syrian army, maintaining a government presence in Deir el-Zour despite a nearly three years-long siege on his forces. The siege was breached in September in a Russian-backed offensive, and the government and allied troops have since seized most of the city.
The Lebanese Al-Manar TV, which is close to the Syrian government, said a land mine killed him.
Zahreddine was a key commander in the Syrian army, maintaining a government presence in Deir el-Zour despite a nearly three years-long siege on his forces. The siege was breached in September in a Russian-backed offensive, and the government and allied troops have since seized most of the city.