The number of school lollipop staff in Wales has fallen by almost a quarter in the past three years, figures show.

As of March 2016, the number employed by local authorities fell by 170 to fewer than 600 compared to three years earlier - a drop of 23%.

Many of the patrols have not been replaced by cash-strapped councils after crossing assistants retired.

Road safety charity Brake said patrols played a "key role" in keeping children safe.

Assistant road safety officer for Pembrokeshire council, Sally Jones, said they still had a role in keeping children safe.