The embassy of Saudi Arabia in Syria has requested information from Damascus about the killing of one of its citizens in the restive province of Homs, an Arab diplomat told dpa Tuesday.
According to the diplomat, who is based in Beirut, the embassy identified the dead Saudi national as Hussein Bin Bandar Bin Khalaf al-Anzi.
"The embassy of Saudi has information that its national entered Syria through the airport and was visiting his sisters in Homs," he added.
Activists based in Beirut said al-Anzi was shot and killed by Syrian security forces on Monday as he was leaving the province of Homs.
Meanwhile the Saudi Press Agency quoted an official source as saying that the "Kingdom of Saudi Arabia views with great concern this criminal attack."
It added that the foreign ministry has advised Saudi nationals living in Syria to stay away from the areas of tension for their own safety.
The diplomat expected the incident to sour an already tense relations between Riyadh and Damascus. Last week angry protesters loyal to President Bashar al-Assad attacked the Saudi embassy in Damascus after the Arab League suspended Syria's membership in the organization.
Syria has been gripped with an unrest since mid-march which has killed so far some 3500 people.