Police are to give a press conference at 7.30am to update on the search for Mikaeel Kular.
The three-year-old was discovered missing from his bed by his mother yesterday morning.
Emergency services searched late in to the night, using specialist search dogs.
Mikaeel was believed to be wearing a beige hooded jacket, brown shoes and nightwear when he disappeared.
Read more: Latest updates on the search
A timeline of events surrounding the disappearance of three-year-old Mikaeel Kular.
What tools and techniques will police be deploying in their effort to reunite Edinburgh toddler Mikaeel Kular with his family?
Hundreds of people have gathered to join the search for a missing three-year-old boy who was last seen on Wednesday night.