A Turkish Airlines flight from Houston, Texas, diverted to Shannon, Ireland, on Sunday was found to have no explosive devices on board and would take off to Istanbul soon, a spokesman for the flag carrier said.<br />The plane, bound for Turkey's largest city, was diverted after a piece of paper with "bomb" written on it was discovered in the toilet, a spokesman for Turkish Airlines said.<br />Nothing was found in the search of the aircraft in Shannon, the Turkish Airlines spokesman said, adding that the plane would take off again to Istanbul.<br />An airport spokesman said the Boeing 777 touched down without incident and all 209 passengers, plus crew, disembarked safely.