The Scottish Government is failing in its duty to stop children from being killed or injured through neglect, according to the author of a report on child protection.

Speaking in the wake of the Liam Fee murder case, Jackie Brock said not all of the recommendations she made two years ago have been implemented.

Ms Brock, the chief executive of Children in Scotland, was commissioned by the Scottish Government in 2014 to look at the systems in place to protect vulnerable children in Scotland.

In her report, she wrote: "Risks to vulnerable children could be missed unless greater priority is given to strengthening child protection arrangements at every level".

Two years on, she says not enough has been done to achieve this.

"I do think there could have been a lot more progress in relation to looking at areas of neglect, for example," she said.

"These areas where children have experienced neglect are areas where children are being killed and injured. These are the ones that don't make it onto the child protection system.

"These are the ones that are most vulnerable, and I think we could have made a lot more progress earlier on than we have done."

Education secretary John Swinney said progress is being made, but changing the system will take time.

He said: "We're working to implement all those recommendations. They take time, because they involve change and reform to the system.

"We're going through a process of continual improvement with our child protection arrangements in Scotland to make sure we have in place all the procedures, processes and legislation to make sure that we can deliver as much protection as is possible."

Another comprehensive review of child protection is now under way. Its findings are expected by the end of 2016.