There were a number of Super Bowl security scares Friday near the stadium where Sunday's game is being held.

Hazardous materials teams and bomb squads were brought in after white powder was found at several New Jersey hotels.

A suspicious letter was also found at the Manhattan office of former New York City Mayor Rudy Giuliani.

The FBI later tweeted: "Substances in suspicious letters in New York and New Jersey deemed non hazardous. Additional testing to come."

Substances in suspicious letters in New York and New Jersey deemed non hazardous. Additional testing to come. @NJSP @NYPDNews

— FBI New York (@NewYorkFBI) January 31, 2014

Alexandra Field, got a first-hand look at the massive security operation in effect. She took a ride over the stadium in a Blackhawk to get a birds-eye view of the intense security preparation for the Super Bowl.