The explosions that shook Boston streets during Monday's 2013 Boston Marathon are still fresh in our minds. People across the United States are reeling from the news that bomb blasts killed at least three people and seriously injured more than 100.

To show support for those people and their families, hundreds, maybe even thousands, are sharing touching photos to social networking sites including Facebook, Twitter and Instagram.

Many people are marking supportive comments on Twitter with the hashtag #prayforboston, while others urge everyone to wear purple tomorrow in memory of those lost and maimed in the attack.

boston stay strong
@kgwallin, Instagram
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gandhi quote
@laurenfolksy, Instagram
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pray for boston letter
@im_kaoruuu, Instagram
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praying for boston heart
Instagram
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pray for boston marathon victims
Instagram
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boston heart
@czarinahisabella, Instagram
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martin luther king jr quote
Instagram
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missoula supports boston
Townsquare Media Missoula
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wear purple for boston
Instagram
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