A column of smoke visible from many points in Barcelonès has set off the alarms of the Generalitat Firefighters, who upon arriving at the initial point of the fire, between Tiana and Montgat, saw that there were three fires lit at the same time. It was 10:45 on Friday morning, and this already made the emergency services suspect that it could be intentional, as they also saw how the fire was ascending at great speed up the ridge. Some witnesses quickly located a man suspected of having set them – they assured that they had seen him starting the fire – a presumed arsonist whom the Mossos d'Esquadra have arrested on the mountain itself. But there was still a lot of work to do, especially because the fire broke out very close to the metropolitan area of Barcelona, the most densely populated area. Around 4:30 PM, the Minister of the Interior, Núria Parlon, announced that the fire had been stabilized and, after 5 PM, the Firefighters declared it controlled.