Reaction to Boston Marathon explosions spread quickly on social media

Warning: Some photographs are graphic and viewer discretion is advised.

TORONTO – News of two explosions at the finish line of the Boston Marathon spread quickly on social media.

Competitors and race volunteers were crying as they fled the chaos. A number of images taken by news media and the crowd at the race were filtered through various social media streams.

Get breaking National news

For news impacting Canada and around the world, sign up for breaking news alerts delivered directly to you when they happen.

Sign up for breaking National newsletter Sign Up

By providing your email address, you have read and agree to Global News' Terms and Conditions and Privacy Policy.

Police say three were killed and more than 130 others were injured during the blasts.

Many expressed their shock and sadness of the tragic event. Some offered prayers for those caught in the explosion.

Below is a sample of some of the photos and comments.

Two explosions at the finish line of the Boston Marathon have resulted in two deaths and at least 73 others injured, police say. WARNING: Some of the photographs are graphic and viewer discretion is advised.

http://storify.com/dshumGlobal/explosions-near-boston-marathon-finish-line