Paul Walker's Death: Tyrese Gibson Breaks Down in Tears at Crash Site (Video)

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From left: Tyrese Gibson, Paul Walker and Chris "Ludacris" Bridges at the "Fast Five" premiere in 2011.

The duo starred together in the "Fast and the Furious" film franchise.

Paul Walker's co-star and friend Tyrese Gibson couldn't hold back his emotions Sunday while visiting the site where Walker died in a car crash the day before.

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Gibson, who starred with Walker in the Fast & Furious film franchise, paid his respects at the site, which has been adorned with flowers and other mementos in honor of the late actor. While walking around the location, Gibson broke down in tears and visibly struggled to keep his emotions under control.

Gibson also paid tribute with a slew of tweets linking to Instagram photos and videos as he shared his memories with his nearly 3 million Twitter followers. Among his tweets:

Others in Hollywood also hit Twitter to express their condolences and shock at the news of Walker's death.

Walker, 40, died in a fiery car crash Saturday during a break from shooting Fast & Furious 7. He had returned to Southern California and died when the limited-edition Porsche in which he was a passenger crashed in Valencia.

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The driver has been identified as Roger Rodas, a well-respected financial adviser and the CEO of Walker's company Always Evolving. (The duo met because of their shared passion for cars.)

Walker was in the area, just north of Los Angeles, for a car show and toy drive set up through his charity, Reach Out WorldWide. In 2010, he flew to Chile to help those injured in the 8.8 magnitude earthquake and earlier was involved in the effort to assist survivors of the earthquake in Haiti.

Pamela McClintock contributed to this report.