Gloucestershire Police say the search of the canal near Stroud for 20 year old George Ford will be stood down at sunset.
The Nottingham University student went missing from his family home in Slad Road in Stroud early on Sunday.
The search will resume tomorrow morning.
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Bob has the Forecast for Bristol, Wiltshire, Somerset, Gloucestershire and Dorset.
Bob has the forecast for Cornwall, Devon, Somerset and Dorset.
Armed officers from Devon and Cornwall Police and Dorset Police are patrolling busy shopping areas in the run up to Christmas.