A bomb went off in the Chelsea section of New York on September 17, 2016.
29 people were wounded, with one of them harmed by shrapnel from the explosive device used for the blast.
Here is a look at how various stars have reacted to the tragedy…
Lady Gaga
In NY safe &sound saying big prayers for my friends in Chelsea. Everyone be safe. We New Yorkers always stick together. #ChelseaExplosion.
Melissa Joan Hart
Stay safe NYC, my hometown! #Chelsea
Jerry O’Connell
Be safe! #Chelsea Be safe!
Alyssa Milano
Please stay safe everyone.
Jeffrey Wright
Thinking of those affected by the #Chelsea explosion. Used to live on that block…on two separate occasions.
Patton Oswald
Pretty sure the #Chelsea explosion was Brigid Berlin angry that someone ate her last Cronut.
Donald Trump
I would like to express my warmest regards, best wishes and condolences to all of the families and victims of the horrible bombing in NYC.