Paul Walker's Fast and Furious co-star and friend Vin Diesel gave an emotional speech at a private memorial service held at the crash site in Santa Clarita, California.

The 46-year-old actor used the loud speaker of a police car to thank fans, who have been visiting the spot to pay tribute to the late actor.

"I just want to say to all of you, if my brother were here right now and he saw all of the love you are bringing here ...If he could see for himself that all of you have shown up to show my brother love… at this hard time his family gets to see all of you show the love that you've shown Paul. It's going to stay with me forever. I just wanted to say thank you. Thank you for coming down here and showing that angel up in heaven how much you appreciate him."

Diesel also took to his official Facebook account and quoted a few lines from a poem by Thomas Campbell.

"Pablo, I wish you could see the world right now... and the profound impact, your full life has had on it, on Us... on me... I will always love you Brian, as the brother you were... on and off screen," he wrote.

Michelle Rodriguez, who plays the role of Lefty Ortiz in Fast and Furious franchise, also paid tribute to Walker.

"I'm gonna carry this torch for you brother, with a forced smile on my face and I'm gonna open my heart just cause your telling me to," she tweeted.

Ludacris, who played the role Tej Parker in the second and the last two installments of the franchise, tweeted: "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."