Four teenagers were taken to hospital after being subjected to an "appalling" attack near a Liverpool shopping park .
Two boys and two girls were punched and kicked after being set upon on Edge Lane Drive.
Two other teens were arrested over the incident, which police believe was racially motivated.
Police were called to Edge Lane Drive just before 6pm on Sunday following reports of an assault.
The victims were by a bicycle docking station when they were reportedly attacked by a group of "youths".