The mother of three-year-old Mikaeel Kular has been arrested and charged in connection with her son's death.
Rosdeep Kular, 33, was detained by Police Scotland after the boy's body was discovered in woodlands in Kirkcaldy, Fife, near her sister's home on Saturday morning.
She is expected to appear before a judge at Edinburgh Sheriff Court on Monday morning.
Assistant Chief Constable Malcolm Graham said: "The investigation into the disappearance of Mikaeel Kular has continued at pace.
"Following formal identification I can confirm that a 33-year-old woman has been arrested and charged in connection with the child's death. The woman is expected to appear at Edinburgh Sheriff Court on Monday.
"I'd like to once again recognise and thank everyone for their support and assistance that we've seen, including that of family and friends of Mikaeel with whom our sympathies remain."
Police investigating the disappearance of Mikaeel Kular had launched a major search for the missing toddler.
Hundreds of local people joined the search for the three-year-old.
A memorial service has taken place at Muirhouse St Andrew's Church near the home Mikaeel shared with his mother, twin sister and three other siblings.
Mourners queued around the church to pay their respects, while vigils in memory of Mikaeel have been held across the country.
Scottish First Minister Alex Salmond said the tragedy had touched the hearts of the people of Scotland and beyond.