Vin Diesel made an impromptu speech on Monday night to the hundreds of fans who stood at the site where Paul Walker lost his life.

Using the loud speaker of a police car, the 46-year-old actor old sent a message of thanks to those at Walker's memorial.

"The love that you've shown Paul, it's going to stay with me forever," Diesel said. "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."

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Diesel, who plays Dominic Toretto in the Fast And Furious franchise, also took to Facebook to pay tribute to his costar, who played Brian O'Conner in the films.

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

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Diesel also attached a photo of the two smiling and a Thomas Campbell quote: "To live in the hearts we leave behind, is not to die."

Several of Walker's other Fast And Furious costars also sent out messages to the actor, including Michelle Rodriguez, who plays the character Letty Ortiz.

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

On Nov. 30, Walker was a passenger in a red 2005 Porsche Carrera GT, which burst into flames after crashing into a pole in Santa Clarita, Calif. Both the actor and the driver, Roger Rodas, were killed. Walker was 40 and Rodas was 38.