The Associated Press is reporting two blasts around the finish line of the Boston Marathon. Injured people were being carried to a nearby medical tent, which had been set up for runners, the news agency reported.
via @CBCAlerts Boston marathon HQ locked down after reported explosions . Ambulances race toward to area near finish line #boston
@AP says "Obama notified about Boston Marathon explosions, directs administration to provide assistance"
According to Reuters, New York Police are increasing security around major landmarks in Manhattan after blasts in Boston.
Michael Doyle, a Canadian who was in the marathon tells CBC News that everything around the finish line was locked down.
"As I was making my way closer to the scene here, it was a mixture of people who were very upset and crying, and who seemed to be cognizant of what was going on, and those who I think were completely unaware of the situation," Doyle said.
Doyle said ambulances, police and military personnel were all visible in the area.
@CBCAlerts Phone line set up for Canadians in Boston: 1-800-387-3124
Via @AP: "Boston Police Department: 2 dead, 22 injured in 2 explosions near marathon finish line
@pmharper Shocked to hear the news from Boston. Thoughts are with those who are affected.
According to the Boston Marathon website, 2,078 Canadians were listed as entrants in the race, which had a total of almost 27,000 people listed as entrants.
Via @AP "The Federal Aviation Administration is warning pilots that it has created a no-fly zone over the site of two explosions at the annual Boston marathon"
"We have at this point in time determined that there has been a third incident that occurred," Police Commissioner Ed Davis said at a news conference Monday afternoon. "There was an explosion that occurred at the JFK Library, so this is very much an ongoing event at this point in time."
"We are not certain that these incidents are related, but we are treating them as if they are."
"If I look out the window, I immediately see six policemen, just on our little corner," Canadian runner Lesley Holmes told CBC's Evan Solomon. Holmes, who was in Boston for her fourth marathon, was at her hotel not far from the finish line.
"As I look down further, if I go three blocks, you can see where the finish line was and you can see the lights going from the police and ambulance … probably not ambulance at this point, but definitely from police.
"The streets are getting very quiet," she said, noting that normally on race day streets are full of people celebrating.
via @AP BREAKING: Obama to speak from the White House Monday evening about Boston Marathon explosions
Police Commissioner Ed Davis clarified that the "device at the JFK Library was actually an incendiary device or a fire. We haven't linked that directly to this incident – so right now, this incident consists of two explosions that occurred on Boylston Street."
Davis said about a 15-block area around the finish of the marathon will be closed for the next 24-hours, possibly longer.
"There is no suspect in custody. We're questioning many people, but there is no one in custody at this point in time," Police Commissioner Ed Davis said Monday evening.
"We still do not know who did this, or why," U.S. President Barack Obama said. "People shouldn't jump to conclusions before we have all the facts."
"But make no mistake, we will get to the bottom of this – we'll find out who did this, we'll find out why they did this. Any responsible individuals, any responsible groups will feel the full weight of justice."