Montrealers looking toward the Saint Lawrence River might have gotten a big surprise. The Groupe de recherche et d'éducation sur les mammifères marins (GREMM) has confirmed that a humpback whale swam past Montreal up the Saint Lawrence River on Saturday. The whale was first spotted around 8:30 a.m. near Montréal-Est and by 11:00 a.m. had made it to the Jacques Cartier Bridge, according to the organization's Facebook posts.\nEarlier in the week, a whale was spotted in the vicinity of Quebec City. At the time, the GREMM stated that that was the farthest upriver a whale of that size had ever been spotted.\n"There have been previous reports of minke whales and beluga whales, but never for this species," the organization wrote in a statement.\n"An adult humpback whale measures between 13 and 17 metres long and can weigh up to 40 tonnes."\nOn Saturday in Montreal, an intervention team from the Réseau québécois d’urgences pour les mammifères marins (RQUMM) was on-site to "assess the animal's condition."\nFisheries and Oceans Canada officials are also "patrolling the area to document the situation and ensure that the 100-metre distance between vessels and the whale is respected."\nPhotos and videos shared with MTL Blog by the GREMM document the whale's journey up the Saint Lawrence and past Montreal.\nThe whale's tail is seen popping out of the water near familiar Montreal landmarks like the Old Port clocktower.\nRéseau québécois d’urgences pour les mammifères marins | Courtesy of the GREMM\nDaniel Patry | Courtesy of the GREMM\nRéseau québécois d’urgences pour les mammifères marins | Courtesy of the GREMM\nIt appears to have made several appearances at the surface.\nVideo shows the whale as it passed Sorel-Tracy, about 90 kilometres northeast of Montreal, on Friday, May 29.\nThe video was taken by one Simon Ferland.\nHumpback whale swims near Sorel-Tracey, Quebec\nPhotos from Fisheries and Oceans Canada show the whale in the area of Trois-Rivière on May 28.\nFisheries and Oceans Canada | Courtesy of the GREMM\nFisheries and Oceans Canada | Courtesy of the GREMM\nThe GREMM encourages anyone who spots the whale "in the Fluvial Estuary sector (from Quebec City to Montreal)" to call 1 877 722-5346 "without delay."\nRéseau québécois d’urgences pour les mammifères marins | Courtesy of the GREMM\nThere's sure to be more news about the animal's unprecedented journey into Quebec.