NBC news reports that,

A gunman entered an immigration services center in downtown Binghamton on Friday, shot several people and took dozens of hostages, according to media reports.

NBC’s Pete Williams cited city and state officials as saying that as many 13 people might have been killed. But Williams cautioned that the information was very preliminary and may change as the hours go by because police were still searching the building.

At least 41 people were in the American Civic Association building at the time of the shooting, The Binghamton Press & Sun Bulletin reported.