Classy, indeed: Many heartwarming moments out of London today. London Marathon runners and spectators paid tribute to Boston and it started off with a moment of silence.

Many runners are wearing Boston T-shirts in solidarity.

Awesome.

Runners are wearing black ribbons as well.

Spectators are also paying tribute and offering support.

https://twitter.com/RowanSnapdragon/status/325932276309450753

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spectators at #londonmarathon remembering #boston

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Solidarity from London. Thank you, our friends!

We continue to keep Boston in our thoughts and prayers.

Related:

Full Twitchy coverage of the Boston Marathon bombing