Group of friends targeted whilst cycling in woods.
The youngsters were playing in Clyne Valley when one of their friends was injured on jumps.
They went to help him - when a gang of around seven to ten, 13- to 17 year old boys arrived at the wooded area.
The group started taunting them and stole a bike, mobile phone and money from a bag.
We've been told a number of people witnessed a group of boys riding along the cycle path shouting and telling people to get out the way.
South Wales Police are investigating the incident.
Emma Wilkins' son had his bike stolen at Clyne - she's shocked by what's happened.