Boston Marathon runners Joey McIntyre, Ethan Zohn send prayers following explosions

BOSTON, MA - APRIL 15: A runner reacts near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Photo by Alex Trautwig/Getty Images)
Alex Trautwig

Joe McIntyre of the New Kids on the Block had just finished the Boston Marathon on Monday, just minutes before the explosions hit. The Boston native tweeted: "There was an explosion by the finish line about 5 minutes after I finished- I'm ok but I'm sure there are many hurt."

"Survivor" winner Ethan Zohn, who also took part in the Boston marathon tweeted: "I'm OK. Most importantly, praying for those injured and affected by this. Still don't have a lot of info. Thanks for your love and concern."

He's just one of the stars sending prayers to runners and others in the area. See how others, including NKOTB member Donnie Wahlberg, are responding to the blasts, which occurred Monday afternoon.