"It is with a truly heavy heart that we must confirm that Paul Walker passed away today in a tragic car accident while attending a charity event for his organization Reach Out Worldwide. He was a passenger in a friend's car, in which both lost their lives," the post reads.
"Thank you for keeping his family and friends in your prayers during this very difficult time."
Walker leaves behind 15-year-old daughter Meadow.
Almost instantly, stars have been turning to Twitter to offer their condolences for or memories of the actor. We'll keep updating the reactions below as more come in.
FYI: After initially sending us a quote from a Vin Diesel Instagram account, the actor's rep now says the page is a fake. Vin has not yet released any statement about Walker's death.
Jordana Brewster ("Fast and Furious" costar) Paul was pure light. I cannot believe he is gone.
Tyrese ("Fast and Furious" costar) My heart is hurting so bad no one can make me believe this is real Father God I pray that you send clarity over this cause I just don't understand My heart hurts it's broken no one can convince me that this is real.... Prayer warriors please pray real hard for his only child, his daughter and family...#HeartOfAnAngel13YrsFamilyForeverWeJustCelebreatedYour40thBirthday..... My God... My God... I can't believe I'm writing this
The Rock ("Fast and Furious" costar) All my strength, love & faith to the Walker family during this heartbreaking time. We find our strength.. in his light. Love you brother.
Ludacris ("Fast and Furious" costar) 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.
Reese Witherspoon ("Pleasantville" costar) So sad to hear about Paul Walker. He was a pleasure to work with, a true gentleman and a humble soul. Prayers and love to his family.
Jessica Alba ("Into the Blue" costar) #RIPPaulWalker -he was a lovely person -so sweet and grounded. My heart goes out to his family Joshua Jackson ("The Skulls" costar) Damn. Hard to imagine someone so full of life taken so soon. My thoughts go out to your family. RIP Pauly Walker
James Vanderbeek ("Varsity Blues" costar) Thoughts and prayers tonight are with Paul Walker's friends and family, especially his little girl. So sad. Very heavy heart tonight.
Ali Larter ("Varsity Blues" costar) So shocked and saddened to hear about the tragic loss of Paul Walker. My love to his family
Rachael Leigh Cook ("She's All That" costar) Paul was a truly good person in a town of questionable characters...A real life tragedy if there ever was one.
Usher ("She's All That" costar) RIP Paul Walker…our prayers go out to his family and friends #gone2soon
Ryan Phillippe ("Flags of Our Fathers" costar) Paul was a good dude. Conscientious & not caught up in Hollywood. He knew there was more to life & lived like it. Nice to know you brotha.
Jamie Bell ("Flags of Our Fathers" costar) Had the pleasure of meeting Paul when we worked together on Flags Of Our Fathers. My thoughts are with his family & friends. #RIP
Aaron Paul My heart goes out to Meadow and everyone else affected by this terrible loss. We will all miss you my friend. We love you. RIP Paul Walker.
Elizabeth Banks Going to bed with a heavy heart about Paul Walker. May his friends and family find peace and grace. A reminder of life's frangibleness.
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.
Chad Michael Murray To lose a spirit so young is a tragedy we all can't cope with. God bless u @RealPaulWalker Your humble & kind nature will never b forgotten Pitbull RIP @RealPaulWalker your in a better place now papo now show the heavens who is fast and furious
Nina Dobrev Truly shocked and upset by the news. Can't believe Paul is gone. Sending every ounce of love and energy to his loved ones. @RealPaulWalker
Neil Patrick Harris Such sad news about Paul Walker! It's so tragic and crazy how things can just end so suddenly. My condolences to his family.
Zoe Saldana A very sad day indeed. R.I.P. Paul Walker. Our prayers are with you and your family. Denise Richards Shocked over the news about Paul Walker..so sad. My heart goes out to his family & loved ones. He was a kind beautiful soul
Gretchen Rossi RIP #PaulWalker I went to high school w/him and my heart breaks for his family. Please pray 4 them during this difficult time.
Snooki IS THIS TRUE ABOUT PAUL WALKER?! I'm in tears
Mario Lopez RIP Paul Walker.. Eerie that the star of The Fast & The Furious died in a car accident.. God Bless his daughter
Lance Bass So so sad about Paul Walker : (
Audrina Patridge Rip paul walker:/
Kevin McHale So sad to hear about Paul Walker. So young. Can't believe it.
Trevor Donovan #RIP Paul Walker .... One of the nicest, most down to earth guys in the business. Glad I had the honor of know & work with such person
Pauly D Wow I Just Heard Some Awful News RIP #PAULWALKER I Loved His Work ,, So Young Too