Library closed due to white supremacists

This article regarding a white supremacists rally in Somerville, MA leaves me with some questions. It seems that the group reserved a library room under another name and when the cops found out they closed the library.

"There was no way we could ensure the safety of the patrons in the library," Bradley said. "For security reasons, we decided just to close the library down. We did give them an alternate location in the parking lot."

The question I have is whether the library was involved or not in this decision. The article leaves this information out along with any comment from anyone associated with the library.