Prime Minister Rishi Sunak has addressed the Horizon Post Office scandal during a visit to Oxford as calls mount for the removal of a former Post Office boss' CBE.

More than a million people have signed a petition seeking the removal of Paula Vennells' CBE in light of the scandal, following an ITV drama depicting the events.

Ms Vennells was at the helm of the Post Office as it persistently denied flaws within its Horizon IT system, which resulted in more than 700 branch managers being falsely convicted for apparent financial shortfalls.

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The wrongful convictions, stemming from the faulty Fujitsu software, led to numerous tragedies, including incarcerations, bankruptcies, and even suicides.

Addressing the situation in a visit to Oxford on Sunday, the Prime Minister Rishi Sunak said: "It has been an appalling miscarriage of justice and appalling treatment of all the people affected and it is right that they get the redress that they deserve.

“That is why the Government has put in place three different compensation schemes that have already paid out almost £150 million to thousands of people who are affected, and are keen to go as quickly as possible.

“More broadly, the Justice Secretary is also looking at other options for how we can provide support for people.”

The million-signature petition is directed to Sir Chris Wormald, chair of the Forfeiture Committee.

It criticises Ms Vennells' continued recognition for her services despite significant evidence indicating the Post Office's complicity in a mass cover-up leading to the gross injustice.

Rishi Sunak has verified reports of justice secretary Alex Chalk's considerations on aiding the exoneration of the wrongfully convicted subpostmasters.

After discussions with Post Office minister Kevin Hollinrake, more information is expected on Monday.

The ITV drama, "Mr Bates Vs The Post Office," has ignited public outrage once again, reportedly prompting 50 potential victims to seek legal counsel since its airing last week.

The Post Office, owned entirely by the Government, is currently undergoing a public inquiry into the Horizon scandal.

Former postal affairs minister, Sir Ed Davey, has also come under renewed scrutiny due to his role during the unfolding of the crisis.

Treasury minister Bim Afolami voiced his concerns on Monday, saying Sir Ed Davey should "be honest with people" and account for his failures in asking the right questions.

Despite the pressure, both Prime Minister Sunak and Labour leader Sir Keir Starmer have refrained from supporting calls for Ms Vennells to lose her CBE.

Ms Vennells expressed her deep regret for the "suffering" caused by the wrongful convictions.

The Metropolitan Police are currently investigating potential fraud related to the prosecutions, extending to possible perjury and perversion of justice offences conducted by the Post Office.