New Jersey Police Officers attend a call for a suspicious powder at the Quality inn in Lyndhurst, New JerseyBy using Edith Honan and Victoria Cavaliere NEW YORK (Reuters) – Several suspicious letters that sparked a security scare close to the web page of this weekend's Tremendous Bowl contained a powdery substance that was once not hazardous, the Federal Bureau of Investigation stated on Friday. No injuries had been pronounced on the sites around New Jersey and New York the place the letters had been acquired, which included at the least two lodges and the workplaces of former New York mayor Rudolph Giuliani. Police have been out in drive right through the metropolitan house beforehand of the February 2 Nationwide Football League championship sport. Met Life Stadium in East Rutherford, New Jersey, about 10 miles west of New York City has been on lockdown since Sunday.