The 5.02pm service from London Liverpool Street to Norwich has been cancelled - Credit: Greater Anglia A rush hour train service to Norwich has been cancelled due to heavy snow this afternoon. Greater Anglia has confirmed the 5.02pm service from London Liverpool Street to Norwich will not be running. The company has warned commuters that some lines are blocked due to the snow. Services between Norwich and Sheringham are also being disrupted due to a points failure caused by the adverse weather conditions. Train services from Norwich will terminate at North Walsham with local Sanders coaches accepting Greater Anglia tickets between Sheringham and Norwich.