Deputy Home Minister Nur Jazlan Mohamed plans to look into the authenticity of jailed former opposition leader Anwar Ibrahim’s statements from behind bars.

This is after Anwar released a statement today vowing that were it to capture Putrajaya, Pakatan Harapan will set up a "truly independent" Election Commission and repeal the anti-fake news law if it is enacted.

"I am curious. Did this statement really come from Anwar? He is prohibited by prison rules to communicate with the world outside without permission from Prisons (Department) director-general," Nur Jazlan said on Twitter.

He added that he will check with Prisons Department director-general Supri Hashim to see if statements had indeed been issued by jailed leader.

When contacted by Malaysiakini, Nur Jazlan said "I don't think it (the statements) are from Anwar."

In January, the deputy minister said that if Anwar was found to have relayed unauthorised statements through third parties, it could affect his prison term.

Anwar is due to be released on good behaviour on June 8.

Read more: Anwar promises 'truly independent' EC if Harapan wins

Statements in Anwar’s name are occasionally sent out to the media by Harapan’s media team.

In August last year, Supri had denied that Anwar issued a statement regarding a fracas during the Nothing to Hide 2.0 forum in Shah Alam.

He explained that Anwar, who is serving a five-year prison sentence, had been brought to the court complex in Kuala Lumpur to attend a civil proceeding on the day the statement was released.

“When in court, Anwar was under constant surveillance by prison officers and personnel. Those not related to the court proceedings were not allowed to meet him, including the media," he had said.

Occasionally, during his court appearances, Anwar entertains the media if they manage to put in their questions before he is whisked away by prison guards.