vin diesel
Vin Diesel with Paul WalkerFacebook official / Vin Diesel

Vin Diesel took to his Facebook page on 9 January to share a photo featuring himself with Paul Walker. The "Fast & Furious 7" actor captioned the photo as "at undefined."

In the photo, the actor can be seen spending some quality time with late friend and co-star Walker. It seems that the photo was taken during the shoot of "Fast & Furious 7."

Diesel has been actively sharing Walker's photos on his Facebook page. The actor reportedly misses Walker's presence in his life and had a hard time coping up with his death. He has revealed in a slew of interviews that losing his friend to a car accident was one of the hardest things he has faced. Walker had died in a tragic car crash in November 2013.

Walker will be seen playing Brian O' Connor for the one last time in "Fast & Furious 7" when the film will be released in April this year. Diesel will reprise his role of Dominic Toretto. It has been reported that the film will begin from where "Fast & Furious 6" left off.

Meanwhile, Diesel is also gearing up to play Kaulder, an immortal witch hunter, in the upcoming supernatural action film, "The Last Witch Hunter." He has been cast opposite Rose Leslie and has transformed his looks for the film. He will be seen sporting beard and heavy metallic armour in the film.

"The more we film, the more I think you will really enjoy this movie. Kaulder is a very unique and interesting character, who has lived for centuries with one foot in reality and the other, in the realm of magic," he told Screen Rant.

"The Last Witch Hunter" is scheduled to be released in October 2015.