Six migrants from Afghanistan and Iraq have been arrested over a series of sexual assaults on eight young women during a music festival in Austria. The men are alleged to have groped the women in a hall containing the bars at the Welser Volksfest wine and beer festival in Wels, a town in the state of Upper Austria. The women filed charges on Saturday night, reporting that the perpetrators held them against their will and touched them between their legs in separate incidents. Of the five Afghan migrants arrested, four are thought to be just between 15 years old, while the other is said though to be younger than 22. A 23-year-old Iraqi migrant is also said to have touched a 28-year-old woman under her skirt from behind. The woman immediately alerted several police officers, who took the migrant to the police station, where he was later released from. The police expect that more women will still come forward to report sex attacks and the investigations are still ongoing. Andreas Rabl, the mayor of Wels, demanded 'zero tolerance' to sexual assault and 'full consequences for the perpetrators' in a Facebook post afterwards. The local police has opened a special phone line for victims to report any sexual assaults. The latest attack in Austria comes after a swimming pool banned all migrants after an alleged incident in Mistelbach, about 100 kilometers (60 miles) northwest of Vienna. Operators erected a sign saying 'no entry for refugees' after a girl alleged she was followed to the changing room by an Iraqi. It was just weeks after an Iraqi migrant was jailed for raping a 15-year-old girl at a swimming pool where he had been taken for lessons to help him integrate into Austrian society.