Mayhem descended on the Boston marathon Monday afternoon, when two explosions at the finish line killed at least three and injured more than 130. What follows below is an account of the first six hours of breaking news from the scene in downtown Boston. TIME is no longer updating this page regularly, but keep visiting TIME.com for the latest dispatches and analyses about the event. 9:00 p.m.: During a press conference with the Boston Police Department, Commissioner Edward Davis confirmed that there are now at least three dead, but denied reports that there is a suspect in custody. FBI’s Richard DesLauriers said that the agency is taking over the investigation of the Boston marathon explosions, calling it a “potential terrorist investigation.” Massachusetts Governor Deval Patrick (D) said the city of Boston will be open tomorrow, but “it will not be business as usual.” There will be a “heightened law enforcement presence.” There will be random checks of backpacks and parcels on the T. 8:45 p.m.: From a statement published on Facebook by former Massachusetts Senator Scott Brown (R): “Like many of you, I was at first horrified. Now I am mad. This was a cowardly act, just cowardly. Our country is at its best when our back is against the wall.” 8:35 p.m.: The NBA has canceled Tuesday’s Boston Celtics and the Indiana Pacers game in Boston, New York Times’ Howard Beck reports. 8:31 p.m.: Hospitals are now reporting that at least 134 people have been injured — and “at least 15 critically,” per the Associated Press. 8:04 p.m.: According to the latest information from the Associated Press, at least 124 people sustained injuries in today’s explosions — ranging from cuts and bruises to amputations. Of those injured, at least 15 are in critical condition. 7:57 p.m.: The FBI has released a statement, saying that federal agents are on-scene assisting the Boston Police Department with their investigation: “The situation remains fluid and it remains too early to establish the cause and motivation.” 7:40 p.m.: TIME’s Jay Newton-Small is on-scene in … Continue reading At Least 3 Dead After Boston Marathon Explosions — Twitter Reacts After News of Blasts at Finish Line