Paul Walker's younger brother Cody is still struggling to come to terms with the actor's tragic death, insisting his loss "doesn't feel real".

The Fast & Furious star was killed in a fiery car accident in November (13), but Cody Walker reveals the news has yet to fully sink in, because he would often go months without seeing his sibling, as he worked on location.

Cody and his brother Caleb recently joined the cast of the Fast & Furious franchise as stand ins to help director James Wan complete filming Walker's unfinished scenes for the upcoming seventh installment of the movie, which the actor had been in the middle of shooting when he died suddenly.

The 25 year old has also been helping to promote Walker's disaster relief charity Reach Out WorldWide (ROWW) as the non-profit's new brand manager, and has been chatting to the media to mark the release of the star's last complete film, Brick Mansions.

But the emotional task proved to be a little too much for Cody on Thursday (24Apr14) as he broke down during a phone interview with a reporter from the Associated Press.

As his voice cracked, he said, "Right now, a whole lot of time has not gone by yet (since Paul's death). It still doesn't feel real, because sometimes, working in this industry, making films, he'd be away from his family three, four, six months at a time, you know? And my only interaction would be a phone call. So, I know it's going to take a while."