Three children have died in a suspicious explosion in the Scottish capital of Edinburgh.
It was thought the children died in a gas explosion but police have confirmed there was no fault with the supply.
The property involved is thought to be a block of residential flats.
The two boys and a girl where killed on Edinburgh's Slateford Road. The blast occurred just before 3pm.
A woman, believed to be the children's mother, is being treated in hospital. Neighbours said she had jumped from the third floor balcony of the terrace block.
Lothian and Borders Fire and Rescue also extinguished what was described as a "small fire" on the first floor of the building.
Post-mortem examinations are due to be carried out on the three children and police said no details about their identities would be released until these were completed.
Scotland Gas Networks sent engineers to the scene but said the explosion did not involve its network.
A resident said the building is only two years old.
A police source was unable to confirm reports the children had died before the blast but said efforts to track down their father were continuing.
A police spokesman said: 'A criminal investigation is currently under way and nothing more can be said at this time into the circumstances which led to their deaths'.