Syrian Observatory for Human Rights said on Wednesday evening that Israel hit Syrian regime outposts south of the capital Damascus.
According to the monitor’s report, the Syrian regime's outposts were hit by three Israeli rockets.
A pro-regime military source denied the reports and said there have been no Israeli armed strikes inside Syria, Reuters reported.
Israel has previously been accused of striking targets in Syria that belong to Syrian regime forces and Hezbollah.
If the report is true, it would be the second time that Israel has struck Syria since Russia launched its aerial campaign on September 30 to help regime leader Bashar al Assad.
In the first strike Israel reportedly hit the regime and Hezbollah forces in the Al Qalamoun mountains, near the Lebanon border.
In January, US media outlets reported that Russia was providing major supplies of arms to Hezbollah, but Russia has denied the claims.