Ben Affleck is among a number of local stars who have reached out to their fellow Massachusetts natives following the horrifying blasts during the Boston Marathon on Monday (15Apr13).
Three people died and more than 140 were injured after two explosions ripped through the Boylston Street area of Boston, Massachusetts as runners were coming to the end of the annual race.
Two other bombs were later found and disarmed safely, according to reports.
The nation has been left aghast following the atrocity, and celebrities flocked to social networking websites to share their shock.
Now a number of the state's most famous names including Affleck, who was born in California but grew up in Cambridge, Massachusetts, and John Krasinski, who hails from the city of Newton, have sent their sympathies to those caught up in the incident.
In a post on his Facebook.com page, Affleck writes, "Such a senseless and tragic day. My family and I send our love to our beloved and resilient Boston."
Krasinki adds in a message on Twitter, "My heart and my prayers are in Boston and with everyone affected by this nightmare of an incident."
Comedian Dane Cook, who also hails from Cambridge, writes on the social networking site, "My prayers with everyone in Boston right now after this atrocious act of violence!!"
The Avengers star Chris Evans, who grew up in Sudbury, Massachusetts, adds, "Thoughts and prayers are with everybody in Boston. Heartbreaking..."
Authorities at the Federal Bureau of Investigation (FBI) have taken over the probe into the blasts but have not yet confirmed whether they have any suspects.