COMMUTERS face delays of up to an hour on trains travelling between London Liverpool Street and Norwich this evening.

A reduced hourly service has replaced the usual timetable after overhead wire problems caused disruption at Chelmsford.

An hourly service will depart Liverpool Street at 30 minutes past the hour and depart Norwich on the hour. Trains will also make additional stops at Shenfield and Witham.

National Express said the disruption is expected to continue until further notice.