<sod >Police in Munich have evacuated two major railway stations after warnings of a "serious, imminent threat"Â  Authorities asked people to stay away from the city's main train station and a second train station in the city's Pasing neighbourhood.< eod>< sod > Police in Munich have evacuated two major railway stations after warnings of a "serious, imminent" Isis terror threat to the city's New Year celebrations.< eod>