Four people were shot and wounded at a rally Monday for the NBA champion Raptors, and two people were arrested "with firearms," police said. Droves of Raptors fans ran from the shooting in a stampede from the City Hall square, which was packed with tens of thousands of people. A million or more fans earlier packed downtown Toronto for a parade for the Raptors, raising concerns about safety and overcrowding. Toronto Police Chief Mark Saunders said four people suffered gunshot wounds but said none of the injuries were life-threatening. Others suffered minor injuries as they tried to get away from the shooting, said Saunders, who asked for witnesses and people who might have video to come forward and help investigators. "We do have people arrested with firearms and that's the start of the investigation," Saunders said. Asked if it was a targeted shooting or terrorism-related, police spokeswoman Allison Sparkes said the investigation was ongoing. During a speech from one of the team owners, the host of the rally interrupted the proceedings to alert the crowd to an emergency and asked for calm. Canadian Prime Minister Justin Trudeau, Toronto Mayor John Tory, NBA Finals MVP Kawhi Leonard and other players were among those on stage at the time. "I want to make sure everyone stays calm," said the host, sportscaster Matt Devlin. "This is serious. Everyone stay calm ... There is an emergency being dealt with." Those on stage remained in place and speeches resumed shortly after. Andrew Singh said he heard what appeared to be gunshots and that a woman was wounded before people started scrambling. "We just saw the girl drop to the floor and the guy running off," the 29-year-old said. "All I heard was, 'bop bop bop.'" Mike Mudidi said he was enjoying the celebrations when he heard screams behind him that someone had pulled out a gun. He said he froze as people started running in all directions. "I just grabbed my buddies' hands and ran," he said. Raptors fan Phil D'Souza said the violence left a bad taste in his mouth, and he questioned whether he would attend a similar event in the future. "You couldn't see the shooter but it was that kind of chaos where you're just expecting to see somebody coming around the corner. It was that kind of vibe," D'Souza said. Another fan said the stampede was scary. "When you see a bunch of people coming at you, you don't know what to do, whether to run or not. You don't want to get stampeded over," Sam Sunday said. Trudeau's spokeswoman declined to comment on the shooting near the prime minister. "We never comment on matters relating to the PM's security," Eleanore Catenaro said. Tory, the mayor, thanked police for their quick response and said he was angered by the shooting. "It is disappointing and I'm sure a source of anger for more than just me that anyone would carry a gun and discharge it at what was otherwise a joyous celebration," Tory said in a statement. "I hope those found responsible will be held to account to the full extent that the law permits. I want to commend and thank the millions of other people who happily and peacefully celebrated our beloved Toronto Raptors." Subscribe to our YouTube channel: https://bit.ly/2TwO8Gm TICTOC ON SOCIAL: Follow TicToc on Twitter: https://twitter.com/tictoc Like TicToc on Facebook: https://www.facebook.com/tictoc Follow TicToc on Instagram: https://www.instagram.com/tictoc Watch all of TicToc’s videos: https://www.tictoc.video/ Listen to TicToc’s podcast: https://apple.co/2D3Vta7 Subscribe to our newsletter: https://bit.ly/2FJ0oQZ TicToc by Bloomberg is global news for the life you lead. We are a 24/7 news network that covers breaking news, politics, technology, business and entertainment stories from around the globe, supported by a network of Bloomberg’s 2,700 journalists across 120 countries