A Conservative Norfolk MP has said Dominic Cummings should be reprimanded for making a trip to Durham during lockdown last month.
North Norfolk's Duncan Baker was one of a number of Tory voices criticising the prime minister's chief adviser after his press conference yesterday.
It comes as Mr Cummings moved to justify his actions on Monday, saying he does not regret his decision.
The government adviser has come under increasing pressure to resign but will be staying on and did not offer an apology for his actions.
Following the press conference Duncan Baker MP tweeted “It is my view that (Cummings) broke the spirit - if not the letter - of the guidance designed to limit the spread of coronavirus. He should now have the courage to admit his judgement was questionable and should be reprimanded."
Other Conservative MPs in the Anglia region have also criticised Mr Cummings for making the 260 mile journey during lockdown, including Mid Norfolk's George Freeman and Waveney MP Peter Aldous.
Yesterday Harlow MP Robert Halfon said he regrets tweeting in support of Dominic Cummings.
There has though been support for Mr Cummings from MPs in the Anglia region.
Great Yarmouth's Brandon Lewis tweeted: “Dominic Cummings has provided a comprehensive account of the events surrounding his travel to Durham" while James Wild, MP for North West Norfolk, said “My view is that this was a frank statement about the decisions he took to protect his young son and his actions were understandable and reasonable"