JERUSALEM (JTA) — A million-year-old cave was discovered in the West Bank during work to move the security fence nearer the settlement of Tzofim.

The cave, with deep caverns and large rooms filled with stalactites and stalagmites, was discovered over the weekend, Yediot Achronot reported.

Tzofim, near central Israel, is surrounded on one side by Kfar Saba and on the other by the Palestinian city of Kalkilya. Along with moving the fence closer to the community, the work also was being done to create better traffic patterns for the Israeli and Palestinian vehicles that share the roads.

The construction was stopped after the discovery of the cave to allow for geological testing.