Paul Walker's Fast and Furious movie co-stars Michelle Rodriguez, Vin Diesel and Jordana Brewster expressed their shock and grief over his sudden death in a car crash last week.

Mourning Walker's loss, Michelle Rodriguez tweeted, "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.'

Soon after her Twitter condolences, Rodriguez changed her profile picture to Reach out Worldwide logo, the charity organization founded by Paul Walker.

 Walker's love interest in the Fast and Furious franchise, Jordana Brewster also sent out her tribute to the actor, describing the news of his death as tragic.

'Paul was an enormous presence in my life for the past 14 years. While many would be satisfied with material success, it made Paul more convinced of the need to help others,' Brewster said in a media statement.

A day after the news of Walker's death in car crash was confirmed, Brewster tweeted, 'Paul was pure light. I cannot believe he is gone.'

Vin Diesel, who plays Dominic Toretto in the Fast and Furious film series, gave a very emotional speech at the site of Walker's car crash where thousands of Paul Walker fans had assembled to pay tribute to him.

In his speech, Diesel said, 'If my brother were here right now and saw all the love that you're bringing here."

'If he could see for himself that all of you have showed up to show my brother love at this hard time, and that his family gets to see all of you show the love that you've shown Paul ... It's gonna 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 appreciated him,' as reported by Daily Mail.

Meanwhile, Paul Walker's family has appealed to friends and fans to make donations to the charity Reach Out Worldwide, in place of sending flowers and other tokens of tribute for the late Paul Walker.