American actor Paul Walker has died at the age of 40.

The actor, who gained worldwide popularity for starring in the 'Fast & Furious' franchise, died in a car crash on Saturday (Nov 30th) in Southern California, he was not driving at the time.

The outpouring of tributes from his co-stars, friends, and celebrities who were fans of his work show what a devastating loss this is.

Walker had been currently shooting 'Fast & Furious 7' and his co-stars took to social media to honour their late friend shortly after the fatal accident.

Rapper Ludacris, who co-starred in 'The Fast and the Furious' franchise posted a photo on Instagram of the cast holding hands round a table with a message that read, "Thankful for the Fast Family."

A caption accompanied the photo, which said;

"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."

Jordanan Brewster, who played his on-screen wife in the street racing films, posted on twitter, "Paul was pure light. I cannot believe he is gone."

Dwayne Johnson, who played agent 'Luke Hobbs' also took to twitter, writing "All my strength, love & faith to the Walker family during this heartbreaking time. We find our strength.. in his light. Love you brother."

Other celebrities also wanted to express their love for Walker.

Jessica Alba, who starred alongside Paul in 2005's 'Into The Blue' posted a solo photo of him on her Instagram with the caption "#RIP#PaulWalker He was such a sweet and grounded guy -my heart goes out to his family #sosad."

Rapper T.I, who worked with Paul in 'Takers' (2011), posted on twitter, "I'm shocked & saddened to find that the world has lost such a great spirited person. Paul Walker was not only a passionate, talented actor, he was also a sincere man with a genuine personality, that filled a room immediately upon introduction. My family's hearts & prayers is extended to his family, especially his daughter. He will never be forgotten. May he rest in peace.#RIPPAULWALKER."

Hollywood has lost a very popular man which speaks a lot about what kind of character Paul Walker was.

This is the photo Ludacris posted on Instagram