Secret synagogue tunnels are causing chaos in New York. What’s really going on?

When the tunnels were discovered in December at the Chabad Lubavitch World Headquarters at 770 Eastern Parkway, Brooklyn, the synagogue’s leaders called in construction crews to flood them with concrete.

But a group of Chabad-Lubavitch students in their teens and early twenties gathered at the building on Monday afternoon in an attempt to protect the hidden passageways.

Videos from the scene captured Orthodox men vandalising a cement truck that had begun to pump cement into the tunnel.