Norwich North MP Chloe Smith has stepped down as a Government minister to devote more time to working in her constituency.
The Conservative MP announced her decision just hours before the Prime Minister started a ministerial reshuffle .
Today David Cameron has been moving ministers in the middle ranks of his government.
Click below to watch a report from our political correspondent Emma Hutchinson.
The Prime Minister applauded Cabinet Office Minister Chloe Smith, who resigned her post today. David Cameron said he looked forward to receiving her recommendations on encouraging young people to vote. Mr Cameron told her:
Conservative MPs have praised the deputy chief whip John Randall and Cabinet Office Minister Chloe Smith, who both resigned today.
Damian Green, Minister for Policing and Criminal Justice:
James Wharton, Conservative MP for Stockton South:
Therese Coffey, Conservative MP for Suffolk Coastal:
Cabinet Office Minister Chloe Smith has said that she wanted to spend more time with her constituents for Norwich North, after she announced her decision to resign.
In her letter to the Prime Minister, Norwich North MP Chloe Smith said:
Cabinet Office Minister Chloe Smith has also resigned her ministerial post, Number 10 said.
Cabinet Office minister and Norwich North MP Chloe Smith has welcomed the publication of a consultation into minimum unit pricing for alcohol. Ms Smith played an early role in designing the policy while a Treasury minister.
She said: ""A minimum price is great news for Norwich pubs because it alters the balance with the off trade including action against cheap supermarket booze. It will help turn the tide against irresponsible 'pre-loading' which we see plenty of in Norwich on a Friday or Saturday night.
"Norwich should stay a great place for a safe night out, with less alcohol-fuelled crime and disorder - and less pressure on A&E."
Click here for more news on the minimum pricing of alcohol.
Norwich North MP Chloe Smith has taken responsibility for helping to co-ordinate Britian's defence against cyber attack.
She will be in charge of defending private and public sector organisations against electronic attacks by computer. They range from email scams up to large scale attacks.
Ms Smith was given the job of Cabinet Office Minister in the last reshuffle.