Vin Diesel is still "speechless" over Paul Walker's death.

Alongside a picture of his daughter Hania, six, with Paul, Vin wrote on Facebook: "He was a part of so much in my life... long personal talks with my mother or babysitting the Alpha Angel... he took a certain pride in being uncle Pablo... after all, we were filming a scene in FF4 the day she was born, and he being the only one I told, encouraged me to go in and cut the umbilicle cord.

"He was an important part of my transition into fatherhood... that healthy family member, with the most positive outlook on life...

"A year ago today... a year of mourning... and his absence still leaves me speechless. We miss you Pablo...(sic)"

Vin - who also has son Vincent, four, with wife Paloma Jimenez - wasn't the only star of the 'Fast & Furious' franchise to pay tribute to their late co-star.

Michelle Rodriguez used Twitter to send "mad love" to the 'Eight Below' actor.

She wrote: "I love you Paul. Your living in the hearts of all who love you for sure. Sending mad love out to Heaven @SupportROWW (sic)"

Michelle's tweet made reference to Reach Out Worldwide (ROWW), the late actor's charitable organisation which provides natural disaster relief.

Elsewhere, Tyrese Gibson paid tribute to him on his Facebook, Instagram and Twitter pages.

He said: "Physically gone but forever alive in our minds, hearts and spirit.... What was once tears of pain and shock are now tears of JOY celebrating all that you stood for...

"Everyone worldwide please take 5 mins out of your day to send live, prayers and energy to Paul's family his daughter Meadow and immediate circle today will be a tough day for us.... To this day his arm is still around my neck with love and protection... Rest in heaven....(sic)"