Heavy snow since Monday has blocked roads and delayed flights in the northeast province of Liaoning, said a spokesman with the provincial communications department on Tuesday. As of Tuesday morning, all passenger transport along Liaoning's expressways had been stopped, said the spokesman. From Monday morning to midnight, the provincial capital Shenyang and most other regions in Liaoning saw heavy snow, with some areas receiving rainstorm. The provincial meteorological bureau released the highest level snow alert for road traffic interruptions. Shenyang Taoxian International Airport was closed from just after midnight till 8 a.m.on Tuesday. Flights due to arrive before 10 a.m. were still delayed. China's meteorological authority on Tuesday forecast snow to fall in northeast China over the next two days.