On Tuesday afternoon, a truck plowed into pedestrians on a bike path in New York City, prior to slamming into a school bus full of kids.
This horrible incident took place very close to the World Trade Center memorial site.
A suspect has been arrested for killing eight people and injuring 11 more, as celebrities from across the country have taken to social media in order to express their shock, horror and sympathy.
Here’s a look at what many of them had to say:
Taylor Swift
The singer who wrote an entire song about the city posted this photo and message.
Sam Smith

New York. My heart is with you always and forever. Devastating news. My soul and heart is with the victims and there loved ones x horrific.
Hillary Clinton

New York’s resilience is stronger than a cowardly act of terror. Thinking of the victims, their families, & the responders who saved lives.
Barack Obama

Michelle and I are thinking of the victims of today’s attack in NYC and everyone who keeps us safe. New Yorkers are as tough as they come.
Josh Groban

Oh my god I just heard gun shots and ran with my dog. I hope everyoneâÂÂs ok. Was half a block from me, didnâÂÂt see it but heard 8-19 quick rounds fired off. Be safe with your kids out there.
Lin-Manuel Miranda

NY, I love you so much. You are strong and full of everyday heroes and I love you. We’ll get through today and tomorrow and the next one.
Bette Midler

Terror attack in NYC, not far from 9/11. Deepest condolences to the families of those murdered; and those involved who are scarred forever.
Billy Eichner

This is sad and horrifying. Sending love to everyone there.
Patricia Arquette

This is a terrible day. Families will be mourning their loved ones tonight. This is an action is the worst of mankind. #NYC
Jared Leto

Sending love to NYC on this tragic + heartbreaking day.
Josh Gad

Oh God. Just read about NYC attack. I canâÂÂt stomach this non-stop senseless hatred and violence. So sad for the city and all those affected.
Marlee Matlin

I am safe in #NewYorkCity but saddened by the horrific events that took place just a few miles from here. Terrorism will never defeat us.
Ashley Benson

So scary that this happened so close to me in a city that I love.
Zoe Saldana

My heart is broken. Sending prayers to all the victims whoâÂÂs lives were taken today in NYC.
Hailey Baldwin

Heartbroken for NYC today. Sending all my love back home, my mind and my heart is with you today.