US presidential candidate Donald Trump features in political satirist Huw Parkinson's latest video, a take on Game of Thrones, as he attempts to "build a wall" to keep intruders away.

The video follows a fierce media exchange between Mr Trump and Pope Francis earlier this week, when the pontiff condemned the businessman's border policies, saying he was not a Christian if he built a wall to keep out immigrants.

"Anyone, whoever he is, who only wants to build walls and not bridges is not a Christian," the Pope told journalists.

"Vote, don't vote, I won't meddle. But I simply say, if he says these things, this man is not a Christian."

Mr Trump fired back, saying: "For a religious leader to question a person's faith is disgraceful."