Pakistan will begin criminal procedures against former prime minister Imran Khan on suspicion of disclosing state secrets. This is just the latest in a line of cases the former premier has been involved in, according to Interior Minister Rana Sanaullah on Wednesday.

The issue concerns diplomatic communications between Washington and Islamabad, which Khan said at the beginning of last year was a part of a U.S. plot to overthrow his administration. Washington has vehemently denied participating in any such plot.

The decision was taken after Khan’s former principal secretary Azam Khan recorded a court statement on Wednesday to the effect that a U.S. diplomatic encrypted letter was manipulated by Khan in March 2022 to serve his political goals, Sanaullah said.

The 70-year-old former cricket hero lost power in a vote of no confidence in April 2022, in which he has said Washington got involved after his visit to Moscow.

Khan waved a piece of paper in a public gathering shortly after his removal saying he was holding a copy of a secret diplomatic letter, which spoke of dire consequences if he continued getting closer to Russia.

Khan travelled to Moscow on the eve of Russia’s invasion of Ukraine.

Sanaullah said the principal secretary also testified that Khan told him he had lost the copy of the letter when he was asked for its return.

“It is a crime to expose an official secret,” the interior minister said, adding the state will be filing the charges in the court against Khan.

“I don’t think he lost the copy. He still has it. It has to be recovered from him,” he said.

Khan said he did not believe his former secretary could testify against him. “I will not accept it as long as I don’t hear it from him directly,” he told reporters after a court hearing in another case.

The secrecy charge is the latest in a multitude of charges Khan has faced since his ouster, including graft, murder and sedition.