The Department for Culture, Media and Sport had its Twitter account 'hacked' on Saturday, with rogue tweets targeting secretary of state Maria Miller.
Three tweets were sent from the official @DCMS account before being quickly deleted. However the messages still spread across social media after being seen by the department's 55,000 followers.
The first tweet from the DCMS account said: "Seriously though guys which one of us hasn't embezzled and cheated the taxpayer? #FreeMariaMiller."
Miller has come under scrutiny over after over-claiming £5,800 expenses claim on a second home. Last week calls were made for her resignation after a 32-second apology for failing to fully cooperate with a 15-month inquiry was deemed inadequate by politicians and members of the public.
A further tweet compared the MP to a "modern day Robin Hood" who "robs the poor to help the rich".
The final message said: "Is @Maria_MillerMP guilty? We will let the public decide."
A spokesperson at the department said they had "no idea" who was responsible for the attack, and no indication has been given whether the posts were made by external hackers or a DCMS employee.
According to the Twitter account, official tweets come "from the digital comms team".
The government is currently investigating how the account was compromised.