Nobel Laureate Prof. Wole Soyinka has said he will destroy his green card if Donald Trump emerges as winner of Tuesday’s United States (U.S.) presidential election.

The green card is a permanent residence permit for the U.S. – prized by many African immigrants to the U.S.

His comments emerged in the video of a conversation with students at Oxford University in the UK.

The famous author appears to be taking a swipe at Trump over his radical stance on immigration.

American voters go to the polls on Tuesday and latest polls show the two candidates are neck and neck.

Trump is famous for his promise to build a wall to keep Mexican immigrants out of the U.S. if he makes it to the White House.

Under his hardline proposals, every illegal immigrant currently in the U.S. would be subjected to deportation if he wins the election.

He said there will be no pathway to citizenship or even legal status for them unless they leave the country and get in line with everyone else who wants to enter the U.S., subject to the normal immigration procedures.

Soyinka said he feared the Republic candidate would ask all green-card holders to reapply to come back into the U.S.

“Well, I’m not waiting for that,” the Nigerian author told his student audience.

“The moment they announce his (Trump’s) victory, I will cut my green card myself and start packing up,” he added.