22 year-old arrested in Derry after man is left in a critical condition

A 22 year-old man has been arrested in Derry in connection with a serious assault.
The attack occurred shortly before 1am this morning in Waterloo Street area of the city.
The victim was rushed to hospital were his condition is described as serious.
The 22 year old was arrested a short time after the assault and is helping police with their enquiries.