GENEVA: The UN investigator on human rights in Iran has called for an independent inquiry into allegations of state-ordered executions of thousands of political prisoners in 1988 and the role played by President-elect Ebrahim Raisi as Tehran deputy prosecutor.

Javaid Rehman, in an interview with Reuters on Monday, said that over the years his office has gathered testimonies and evidence. It was ready to share them if the United Nations Human Rights Council or other body sets up an impartial investigation.

He said he was concerned at reports that some "mass graves" are being destroyed as part of a continuing cover-up.

"I think it is time and it's very important now that Mr. Raisi is the president (-elect) that we start investigating what happened in 1988 and the role of individuals," Rehman said from London, where he teaches Islamic law and international law.

A probe was in the interest of Iran and could bring closure to families, he said, adding: "Otherwise we will have very serious concerns about this president and the role, the reported role, he has played historically in those executions."

Raisi's office could not be reached for comment. The office of the spokesman of the Iranian judiciary was not immediately available to comment. Iran's missions to the United Nations in both New York and in Geneva did not immediately respond to requests for comment.

Raisi, a hardline judge, is under U.S. sanctions over a past that includes what the United States and activists say was his involvement as one of four judges who oversaw the 1988 killings. Amnesty International has put the number executed at some 5,000, saying in a 2018 report that "the real number could be higher".—Reuters