MetLife Stadium, site of Super Bowl 2014
01/31/2014 AT 02:10 PM EST
Two days before the Super Bowl, hazardous materials units and the Bergen County, N.J., bomb squad were called in to respond to the discovery of a white powder substance in three hotels near MetLife Stadium, where the big game will be held Sunday.
Jeanne Baratta, chief of staff at the Bergen County Executive’s Office, said midday Friday that the substances were found at two hotel sites in Carlstadt and another in East Rutherford, according to the Bergen Record
. Hazmat units were also dispatched to two hotels in Lyndhurst, where "suspicious letters" were discovered.
CNN reports that, following an investigation, the FBI determined that the substances were non-hazardous, and East Rutherford mayor James Cassella told the network
that the substance was cornstarch.
Lyndhurst Police Chief James O'Connor said that similar letters were also received at the Courtyard at Marriot and the Quality Inn.
Law enforcement officials told CNN
that they were testing white powder contained in a letter sent to the Manhattan office of former mayor Rudy Giuliani.
There have been no injuries, according to New York City TV reports, with WABC7 saying no evacuations were ordered.
Sunday's game is being played under a heightened security net that has been placed around the New York/New Jersey area.