expresses our deepest condolences towards those affected by the tragic events at the Boston Marathon today. We continue to hope for the recovery of the dozens injured.

An event that symbolizes strength and inspiration was struck with tragedy this afternoon when two explosions erupted at the finish line of the Boston Marathon, killing two people and injuring 49 (and counting).

Thousands of runners still had yet to finish the race when the bombs exploded in a spectator area along Boylston Street near the finish line, CNN executive producer Matt Frucci said at the scene. The explosions occurred at about 2:45 p.m., more than two hours after the first of the race’s nearly 27,000 runners had crossed the finish line. The cause of the explosions remain unknown.

Boston reporters, such as David Abel, tweeted live from the scene:

Tweet Boston Marathon

A third explosion occurred at the John F. Kennedy Presidential Library about an hour later, which is located roughly 5 miles southeast of the Boston Marathon finish line. Police are still unsure whether the explosions are related.

  • Relatives of people who may be missing in the area can call the mayor’s hotline at 617-635-4500
  • Anyone who has information about the bombings or saw anything suspicious can call 1-800-494-TIPS

Organizers with the London Marathon, scheduled for this coming Sunday, have begun to take security precautions.

“We are deeply saddened and shocked by the news from Boston,” London Marathon officials said Monday. “Our immediate thoughts are with the people there and their families. It is a very sad day for athletics and for our friends and colleagues in marathon running. Our security plan is developed jointly with the Metropolitan Police and we were in contact with them as soon as we heard the news.”

The Boston Marathon is one of track’s most storied events, established in 1897 and one of the six World Marathon Majors. The event typically attracts an estimated 500,000 spectators and requires certain qualifying times for runners to compete.