<p>EAST RUTHERFORD, N.J. (AP) -- Authorities closed highways and the New Jersey Turnpike's western spur after a Greyhound bus carrying 16 passengers was stopped and evacuated Sunday.</p>
<p>Greyhound spokeswoman Kim Plaskett said the FBI is involved.</p>
<p>Local police and the FBI did not release any details for several hours after the incident, which began just before noon.</p>