Passenger Surrenders After Bus Bomb Scare 9-hour standoff ends peacefully By Rob Quinn, Newser Staff Posted May 7, 2010 1:41 AM CDT 2 comments Comments A passenger on a Maine-to-New York Greyhound bus surrenders to authorities after a 9-hour standoff sparked by a bomb scare in Portsmouth, NH. (AP Photo/Jim Cole) (Newser) – A 9-hour standoff with a passenger on a Maine to New York Greyhound bus ended peacefully last night when the man surrendered to police. The standoff in Portsmouth, New Hampshire, began when a passenger called 911 to report an explosive device. The driver and 16 passengers left the bus after police surrounded it, leaving one man on board. "We do not believe this to be a terrorist event," the local police chief told AP. Investigators are questioning the man, who is believed to be a foreign national. A bomb squad is still examining the bus and authorities say they'll release more information about the incident tomorrow. There was no immediate information on what kind of device may have been found and if it posed any danger.