Inspector Hughes said: “As part of our ongoing enquiries, we believe that Stephen may have been in the area of Rainey Street and Tobermore Road in Magherafelt on Monday 3rd June at around 9:40pm.
“We believe that Stephen was last seen wearing jeans, a green coloured polo shirt and dark coloured trainers with white soles.
“We believe Stephen walked from a shop in the area towards the direction of the Tobermore Road on Monday 3rd June between 9:30pm and 10:30pm.
“Stephen is described as being approximately 5”4 in height, of stocky build, brown eyes and short, black hair.
“We are appealing to anyone who may have been in the area between 9:30pm and 10:30pm and saw someone matching Stephen’s description, is asked to contact police on 101 quoting reference number 1603 08/06/24.
“We would also ask anyone living in the Tobermore Road area to review any CCTV or doorbell footage between 9:30pm and 10:30pm on Monday 3rd June that may be able to assist with our enquiries.”