Police in Sheffield are warning the public about the dangers of an unknown small green pill - after two teenagers were taken to hospital last night .
The 16 and 17 year old are being treated at Northern General Hospital. It's thought the pair took the drugs - the paracetamol sized tablets - at an event in the Attercliffe area of the city last night.
A 17-year-old boy has been arrested on suspicion of supplying the drugs. Officers are warning people not to take the tablets.