Suspicious Item Found on United Airlines Flight

The plane was diverted to Boston and fighter jets followed as it landed.
2:01 | 08/01/12

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Transcript for Suspicious Item Found on United Airlines Flight
OVERNIGHT ABOUT THE UNITED AIRLINES JET FORCED TO MAKE AN EMERGENCY LANDING, DUE TO A SUSPICIOUS ITEM FOUND ONBOARD. PASSENGERS WERE DIVERTED TO BOSTON. FIGHTER JETS, FOLLOWING THE PLANE AS IT LANDED. ABC'S JIM AVILA JOINS US FROM WASHINGTON WITH ALL OF THE DETAILS. JIM? Reporter: GOOD MORNING, AMY. AN EXTRA NIGHT STATESIDE FOR A FLIGHT FULL OF PASSENGERS OFF TO EUROPE. AN ALERT FLIGHT CREW NOTICED SOMETHING TUCKED IN A SEAT BACK, THEY COULD NOT IGNORE. SCRAMBLING A MILITARY ESCORT AND LEADING TO TENSE MOMENTS OVER THE ATLANTIC. JUST TWO HOURS INTO UNITED FLIGHT 956 FROM NEWARK TO GENEVA, SWITZERLAND, AIR TRAFFIC CONTROLLERS AT BOSTON'S LOGAN FIELD GOT AN EMERGENCY CALL. I CAN'T DELAY HIM. HE'S GOT A BIG PROBLEM. Reporter: THE PLANE, ESCORTED BY TWO F-15 FIGHTER JETS, DIVERTED AFTER A FLIGHT ATTENDANT NOTICED A CAMERA NOTICE AN AIR SICKNESS BAG AND STUFFED INTO THE POCKET ON THE BACK OF AN EMPTY SEAT. PASSENGERS ONBOARD SAID IT WASN'T THEIRS. SO, THE PILOT, OUT OF AN ABUNDANCE OF CAUTION, DECIDED TO TURN AROUND. ONCE ON THE GROUND, THE 157 PASSENGERS ONBOARD WERE RESCREENED. WE'VE INSTRUCTED THE PASSENGERS TO LEAVE EVERYTHING ON THE PLANE, INCLUDING THEIR HANDBAGS. Reporter: THE CAMERA, INSPECTED BY SECURITY AGENTS AND GIVEN THE ALL-CLEAR. WHY WOULD AN ABANDONED CAMERA CAUSE THIS TYPE OF REACTION? SOURCES TELL ABC NEWS, TERRORISTS HAVE BEEN SEARCHING FOR NEW WAYS TO GET DEVICES PAST AIRPORT SCREENERS. JUST TWO MONTHS AGO, INTELLIGENCE OFFICIALS SAY THEY BELIEVE THE MAN BEHIND THE UNDERWEAR BOMBING WAS TRYING TO DEVELOP A WAY TO HIDE A BOMB IN A CAMERA. THE CAMERA CONTAINED NOTHING MORE THAN SOMEONE'S MISSING VACATION PICTURES. IT'S TRACED THE CAMERA TO A PASSENGER ON AN EARLIER FLIGHT ON THE SAME PLANE. AS FOR THE TRIP TO GENEVA, IT'S SCHEDULED TO RESUME THIS AFTERNOON. THANKS, JIM AVILA. A LOT OF VACATION PLANS DESTROYED OVER THAT ONE. PAULA FARIS IS HERE WITH THE

This transcript has been automatically generated and may not be 100% accurate.

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