Humberside Police are appealing for help to trace a man and woman after an unexplained death in Grimsby.
Police were called to the former art college on Eleanor Road at around 12.20pm on July 22, following reports of the death of a man in his 40s.
The death is not being treated as suspicious and a file is being prepared for the coroner.
The man and woman pictured are believed to have alerted staff at the nearby Booth Life House, before leaving the area.
Officers investigating the death are now keen to speak to them, as it is thought they may have valuable information.
The woman is said to have long blonde hair and wore a black top and a blue skirt, with black shoes and a bag.
The man had light hair and wore blue jeans, a green T-shirt and black trainers.
Anyone with information is asked to call 101, quoting log number 296 of July 22.