Anna Soubry
Anna Soubry reported the message to police. Reuters

A man has been arrested in connection with an investigation into alleged threats made towards Conservative MP Anna Soubry on social media.

Soubry reported a Tweet to police and shared a screenshot of the comment, which read: "Someone Jo Cox Anna Sourby please (sic)".

A 25-year-old man was arrested at his house in Bethnal Green on suspicion of sending malicious communications, following an investigation into the message, Metropolitan Police told the Press Association.

He is being held in custody in East London, but has not been charged.

After the MP for Broxtowe shared the Tweet with her followers, she saw an outpouring of messages of support, with the threat coming less than six months after the death of Labour MP Jo Cox, who was murdered by Thomas Mair outside her constituency surgery in June.

Soubry referred to the person who wrote the Tweet as a "sad cowardly troll" and reported the incident to the authorities, sharing the initial message and writing: "This is what has happened to our politics. Tolerance & free speech must prevail."

Following supportive tweets from politicians and members of the public alike, Soubry tweeted: "Thank u everyone for much appreciated support. Voices of hope & tolerance will not be bullied off #Twitter or anywhere else."

She also shared tweets from people including Bath Labour Party, which read: "Solidarity with @Anna_Soubry. No one should have to tolerate threatening tweets and our MPs MUST be free to campaign safely. #moreincommon"