Synagogue leaders discovered tunnels underneath the women’s section of the Chabad headquarters at 770 Eastern Parkway in Crown Heights, according to several Chabad-Lubavitch Hasidic news outlets.

The synagogue called in an engineer to inspect the building for any structural harm, and the women’s section on Kingston Avenue has been closed off, according to Chabadinfo.com. 

As rumors circulate about who could have dug the tunnels, community leaders told chabadinfo.com that they pose no danger to the building.