German authorities said Tuesday that young women were sexually harassed and robbed by hundreds of young men on New Year’s Eve. Attacks took place in the western city of Cologne, in Hamburg in the north, and Stuttgart in the south, reported the New York Times and the Wall Street Journal. Most of the attacks took place in the main square in Cologne during celebrations. Victims and witnesses described the attackers as young men “who appeared to have a North African or Arabic” background, the newspapers reported. More than 90 people in Cologne have filed legal complaints, according to police. In Hamburg, police said that 10 women had reported being sexually assaulted and robbed. The Wall Street Journal said there were incidents in Stuttgart, but no arrests have been made in any of the cities. Germany took in more than 1 million migrants and refugees last year. Most of them come from the Middle East, Afghanistan and Africa.