JERUSALEM (JTA) — Syrian rebels discovered a joint Russian-Syrian secret spy post in a town on the Golan Heights near the border with Israel.

The facility was used as a cover intelligence collection base, the rebels said, the Daily Beast reported Tuesday. It collected information from rebel groups in Syria and of Israeli military forces, according to reports.

Footage of the base taken by the Free Syrian Army and posted on YouTube showed a map detailing locations of Israel Defense Forces positions in Israel’s north. It also uncovered photos of senior Russian intelligence and military officials visiting the facility.

The rebels captured the base in Tel Al-Hara, south of the Quneitra border crossing with Israel, over the weekend, according to reports.

The facility may also have been used to spy on Saudi Arabia and Jordan, according to the Daily Beast.

Israel has not officially commented on the discovery.