Sheffield Hallam MP Jared O'Mara has been arrested on suspicion of fraud, reports have suggested.

The independent MP, who is due to stand down next month, was arrested at the same time as office manager Gareth Arnold, the Daily Mirror and BBC reported.

The two men were arrested on August 16 and released the next day pending further investigation, the Mirror said.

The paper said that the constituency office where the pair work was raided by officers, who removed documents and computers.

Mr Arnold, who is reported to have been arrested for conspiracy to commit fraud, said he could "neither confirm nor deny" suggestions that the MP had been arrested.

No-one was available at Mr O'Mara's home or at his office to comment on the reports.

A South Yorkshire Police spokesman said: "We neither confirm nor deny the identity of someone who is or is not subject of investigation."

A spokesman for Sheffield Hallam Lib Dems said: "We have been calling for the resignation of Jared O'Mara for a long time. With crucial votes coming up in Westminster, the people of Sheffield Hallam need an MP they can count on to fight Boris Johnson's Brexit plans and to stand up for local communities."

The Independent Parliamentary Standards Authority (IPSA) said: "As an independent regulator, IPSA makes sure, on behalf of the public, that all MPs comply with our rules, as set out in the Scheme of MPs' Business Costs and Expenses, and takes action where necessary."
Last month, Mr O'Mara announced that he would step down as MP for Sheffield Hallam in September.

It came after Mr Arnold had used the politician's own Twitter account to publicly resign, before eventually agreeing to stay on until a new MP takes up the seat.

In a statement issued prior to announcing he would resign in September, Mr O'Mara suggested that he would need to take time out in order to address his "mental health and personal issues regarding self-medication".