Mikaeel Kular may be victim of a crime, police have confirmed Police believe it is "entirely possible" missing toddler Mikaeel Kular "may have been the victim of a criminal act." At a police press conference on Friday evening Assistant Chief Constable Malcolm Graham said they were following several lines of inquiry. In a move that signalled a public shift in the focus of the search, ACC Graham said the police response was now a "twin track inquiry" between a missing person search and a criminal investigation. He added: "It's a grave concern Mikaeel has been missing for 48 hours." The three-year-old was put to bed by his mother, Rosdeep, at their home in Ferry Gait Crescent in the Drylaw area of Edinburgh at 9pm on Wednesday. Mr Graham added: "Given the length of time between him last being seen on Wednesday evening in the family home by his mum and siblings, the lack of any confirmed sightings of Mikaeel and his very young age, we continue to look at every possible reason for his disappearance. It remains possible that he left his home on his own accord. It is also a possibility that there could be other factors involved in his disappearance. We have at this time nothing to confirm either way why Mikaeel has gone missing and strenuous efforts are ongoing to establish the full circumstances around this. Relatives traced He said all Mikaeel's immediate family members had been traced and spoken with police. "It has been extremely helpful to understand all the circumstances that have led up to his disappearance," Mr Graham said. We have established a timeline of Mikaeel's movements going back for sometime prior to when we can establish that he was last seen in the house on Wednesday night. Now it is important for us that anybody who has got information about having seen Mikaeel comes forward and gives that to us. There is a timeline going back of when he has been seen by different people, but I am not able to go into the detail of that at the moment. Mr Graham added that Mikaeel had not been back to nursery at Flora Stevenson Primary since the Christmas break as he had a bad cold which developed into a chest infection. Potential sighting Police later said they had received a number of calls from the public about the sighting but have not yet confirmed whether or not it is Mikaeel. Police have vowed to carry on the search through Friday evening and have again appealed for the public to join the search on Saturday morning. Volunteers are asked to meet at West Pilton Neighbourhood Centre at 19 West Pilton Grove at 10am on Saturday. Volunteer effort On Friday hundreds of members of the public gathered at a nearby community centre to be briefed by police before they helped with the massive search, focusing on the Silverknowes and Cramond foreshore area just to the north of Mikaeel's home. So many people turned up that they could not all fit inside the North Neighbourhood Office, so the briefing was held outside. He is described as being of Asian appearance, 2ft tall and of slim build.