(CNN) — As details continue to emerge on the explosions that occurred at the Boston Marathon Monday, celebrities have joined in the outpouring of support on social media.

“My love and strength go out to all those affected by the explosions!” Alyssa Milano tweeted, adding a link to where people can donate blood.

More chimed in with statements like Ellen DeGeneres, who posted, “Let’s all send our thoughts, our prayers and our energy to the people injured in Boston. My heart is with you.”

Chloe Grace Moretz: “Horrific things happening in the world today. God bless those who have died and are injured.”

Patton Oswalt: ‘Look for the helpers. You’ll always find people who are helping.’ — Fred Rogers, on what to do when scary things are on the news #boston”

Kevin Jonas: “prayers go out to everyone in Boston. We all love you and we are praying for you.”

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