Thornbury and Yate MP Luke Hall has resigned his roles as deputy chairman of the Conservative Party. 

The resignation comes amid reports Prime Minister Boris Johnson will also step down today. 

In his resignation letter Luke Hall said: "I had taken the view that there must be parliamentary oversight of the inevitable leadership contest. 

"However, there are others who can provide that. The current situation is clearly untenable.

"I have spent many years supporting the Conservative Party at every level, but that loyalty is directed to the party, our values, and ultimately the communities we represent, not any one individual. 

"It is now in the best interest of the Conservative Party and the country for you to step down.

"I am deeply saddened that it has come to this, but like many other colleagues, I feel there is no choice."

There have been more than 50 resignations from various roles across government over the last few days. 

It is now widely being reported that Boris Johnson intends to resign himself later today.

READ MORE: Reports suggest Prime Minister has resigned