Vin Diesel has admitted that pal Paul Walker's death was one of the darkest times in his life.

The actor - who worked alongside Walker on five of the Fast & Furious movies - opened up about his passing during an interview on Live with Kelly and Michael, where he revealed it was hard for him to talk about the topic.

Speaking to Michael Strahan, Vin said at first: "And they’re both looking at me right now like, is this going to be too much for him? Because it could be. We could change the tone of the whole show real quick.”

After gaining a bit of composure he admitted that it was one of the heaviest things he’s dealt with.

“It’s a heavy thing, Michael. You know?” Diesel said. “I grew up in the bouncer world, and we lost people while we were bouncing. But the brotherhood in Paul Walker was something completely different.

"It was someone that we… we grew up in the business together, and we became famous together, and we represented the biggest franchise together."

He continued: "He was my partner, and it’s a strange thing to… I’ve been acting all my life and they don’t teach you in acting, how to mourn someone and simultaneously pretend they’re in a scene with you.”

[related]Diesel is referring to how the movie continued filming Fast & Furious 7 after Paul’s passing, by using old footage, computer simulation, and even Walker’s own brothers to fill in the bits and pieces.

“It’s one of the darker moments in this, in my journey. Yeah. Yeah guys, you know it’s a rough one. You all had people you love that passed away,” Vin concluded.

Fast And Furious 7 is due for release in April 2015.