Dwayne 'The Rock' Johnson exposes the cause of his father's sudden death

Dwayne 'The Rock' Johnson has opened up on the death of his late father, WWE Hall Of Famer Rocky Johnson, who died last Wednesday at the age of 75.

Taking to Instagram to thank his friends and fans for their support since the sad news

broke, the actor, 47, revealed that his father died 'very quickly from a massive heart attack.'

'As you know, I lost my old man a few days ago. I lost him just like that, didn’t get a chance to say goodbye to him,' the Jumaji actor said in a video. 'I’d give anything right now to give him a big ole hug and a big ole kiss before he crossed over and just say thank you and I love you and I respect you. But I didn’t get a chance to say that, but such is life, as many of you know.'

 'A lot of you guys wanted to know what happened to my dad. He had not been feeling well, had been battling a cold and infection and on Tuesday he had what’s called a deep vein thrombosis, which is essentially a clot in the leg.

'It was a big ole blood clot that broke free, traveled up his body, and went right to his lung, clotted his lung and he died very quickly from a massive heart attack, just like that.'

He added his father 'went quick.' 

'That did give me great comfort in knowing that it wasn’t prolonged,' as he said his dad, who was a wrestler, 'had been in a lot of pain for a very, very long time.'

This comes after The Rock penned a touching tribute to his late father, WWE Hall Of Famer Rocky Johnson.