Police are investigating the circumstances surrounding the death of a man in Norwich on (Friday 9 January).
Officers received a call from a member of the public at about 9.30pm Â concerned for the health of an acquaintance of his.
Enquiries established that the man, aged in his 30s, died earlier in the day at the Norfolk and Norwich University Hospital.
A 41-year-old man has been arrested in connection with the incident and is assisting police with their enquiries.
Detective Chief Inspector Andy Ninham said: â€œWhile the manâ€™s death does appear to be drug related there is no evidence at this stage to suggest it is linked to the other recent deaths in Norwic