Boy, 15, stabbed at party in Success Police were called to move on groups of young people after several brawls broke out following house parties last night. A 15-year-old boy has been stabbed and dozens of youths have been involved in violent brawls following out-of-control parties overnight. About 100 youths turned up to a birthday party in Coodanup which spilled out into Wellstead Way where the party-goers began fighting, throwing bottles and damaging property. Police, including officers from the Dog Squad, attend and four people were charged with disorderly conduct. In Success, a 15-year-old was stabbed in the chest after about 100 youths spilled out into the street following a house party at a house on Covington Street. Neighbours reported that the youths were drinking, yelling abuse and blocking traffic. The teenage victim was treated in Fremantle Hospital for a non life-threatening injury. Police also broke up a crowd of youths who were fighting with weapons in a Clarkson park. Bottles were thrown at the five police vehicles which attended. In Maddington, police were called after a group of about 30 youths were walking down Alcock St disrupting traffic, fighting and confronting residents of the street. The group had been at a party in nearby Carisbrooke St where up to 200 revellers had left the area. Fourteen police vehicles attended and two people were charged with disorderly conduct.