Police probing the crash deaths of a mother and two children have traced the source of an oil spill to an industrial crane, BBC Scotland understands.
Ann Copeland and her two daughters were killed
Ann Copeland, 45, and her daughters Ciara, seven, and Niamh, 10, died in the A92 crash.
Police said a spill of lubricating oil was a "significant factor".
A Grampian Police spokesman said officers were confident they had identified the source and a report would be send to the procurator fiscal.
Anyone with information about last Wednesday's crash was asked to contact Grampian Police on 0845 600 5700.