There’s a dark cloud over Hollywood as people are grieving the loss of one of entertainment’s most beloved actors, Paul Walker. The 40-year-old star died tragically in a car accident in Santa Clarita, California on Saturday, along with his friend Rogar Rodas.

The moment news broke about Paul’s sudden passing, his fellow Hollywood stars jumped on Twitter to express his heavy hearts and send their condolences to the victim’s families.

Related Article: Gone Too Soon: A Look Back at Paul Walker's Career

Below are just a few of the touching tribute to Paul on Twitter.

Carson Daly: Sick about the tragic loss of #PaulWalker. I enjoyed our time together very much. Such a really nice guy. Prayers to his family and friends.

Ariana Grande: What a tragedy. Cherish every moment with your friends, family & loved ones. You never know what could happen. Heartbreaking #RIPPaulWalker

Alyssa Milano: No, @RealPaulWalker. No. No. No. Rest with the angels. You. Sweet boy. #beauty #love #RIP

Snooki: IS THIS TRUE ABOUT PAUL WALKER?! I'm in tears.

Kat Dennings: Paul Walker???? Oh my god. This is heartbreaking

Gabrielle Union: There are no words... Someone pls say this is just another absurd internet hoax

Lance Bass: So so sad about Paul Walker

Wilmer Valderrama: Heartbreaking!! One of the most genuine & humble people I have EVER met in this industry.. A TERRIBLE loss, be at peace #PaulWalker

Jenna Dewan-Tatum: Just heard the awful news about Paul so sad. I've always heard such nice things about him. Prayers to his family :(

Olivia Wilde: Heavy heavy heart tonight. Paul Walker was a genuinely good, sweet, kind, laid back, loving person. Sending much love to his family.

Sarah Hyland: Shocked and saddened by the tragic death of #PaulWalker It's really hard to believe. My thoughts are with his friends and family. RIP

Lucy Hale: Shocked and saddened by the tragic death of #PaulWalker It's really hard to believe. My thoughts are with his friends and family. RIP

Nick Lachey: Though I didn't know him well, I did know Paul Walker to be one of the good guys. Obviously, he has been taken from us way too young. #RIP

Ludacris: Your humble spirit was felt from the start, wherever you blessed your presence you always left a mark, we were like brothers & our birthdays are only 1 day apart, now You will forever hold a place in all of our hearts @paulwalker legacy will live on forever. R.I.P.

James Van Der Beek: Thoughts and prayers tonight are with Paul Walker's friends and family, especially his little girl. So sad. Very heavy heart tonight.

Dwayne Johnson: All my strength, love & faith to the Walker family during this heartbreaking time. We find our strength.. in his light. Love you brother.

Pete Wentz: You know I never met Paul Walker, but there was something about him onscreen that was so relatable and felt genuine. RIP. U will be missed.

Olivia Munn: RIP Paul Walker. Gone too soon...

Ryan Seacrest: "Time is long but life is short" #rippaulwalker

Miley Cyrus: im really sad about Paul Walker

Justin Bieber: RIP Paul Walker

Rachel Leigh Cook: Paul was a truly good person in a town of questionable characters. ..A real life tragedy if there ever was one.

Rest in Peace, Paul.