OTTAWA (IQNA) – Montreal Police have arrested a man as they launch investigation into a mosque vandalism. The windows of Imam Warch mosque are smashed and boarded up. Montreal police say they have arrested a man and the hate crimes unit is investigating. Another photo taken from inside showed a rock or chunk of concrete on the mosque's carpet, surrounded by shards of broken glass. The Canadian Muslim Forum issued a statement condemning the vandalism and expressing concern over acts of aggression against Muslim institutions.