The authorities initially said they were looking into the possibility that the shooting was an act of terrorism, with the counterterrorism agency raising its threat assessment to the highest level. They had also ordered the evacuation of all mosques in the city, but it's unclear if that move stems from a specific threat or as a precaution in the wake of the attack in New Zealand.
Context: The city of Utrecht has a large immigrant population, with more than 30 percent born outside the Netherlands. The attack took place in the Kanaleneiland neighborhood, which is home to a large Muslim community, largely Moroccan and Turkish.