0333 GMT May 20, 2018
The attack hit the al-Fawwar camp on Sunday, wounding two others, the unnamed official told the French news agency AFP.
It was not clear whether the assault was an airstrike or shelling. The attack comes after Israel struck a Syrian army position in the province of Quneitra on the Golan plateau on Friday, "causing damage."
A Syrian military source told the official SANA news agency that the Israeli aggression came after an attempt by terrorists to infiltrate military positions in Quneitra was foiled and the assailants suffered heavy losses.
The Israeli military confirmed the raid in a statement, saying it was conducted shortly after three mortar shells allegedly fired from Syria hit an open area in the northern occupied Golan Heights.
The Tel Aviv regime regularly hits positions held by the Syrian army in the Golan Heights, claiming that the attacks are retaliatory. Syria says the raids aim to help Takfiri militants fighting against government forces.
In the past, the Syrian army has confiscated Israeli-made arms and military equipment from terrorists fighting the government forces. There are also reports that Tel Aviv has been treating the extremists wounded in Syria.
Israel seized the Golan Heights from Syria after the 1967 Six-Day War and later occupied it in a move that has never been recognized by the international community.
The regime has built tens of illegal settlements in the area ever since and used the region to carry out military operations against the Syrian government.