Prime Minister David Cameron: 'Maria Miller has my full support'
13 December 2012 Last updated at 15:46 GMT
The Parliamentary Commissioner for Standards has opened an inquiry into expense claims by the Culture Secretary Maria Miller.
Labour MP John Mann submitted a complaint about her claims on Tuesday.
It follows reports she had allowed her parents to live in a property on which she claimed £90,718 in second home allowances during the last parliament.
Mrs Miller has said her expenses were "absolutely in order" and "in complete accordance with the rules".
Speaking in Brussels, Prime Minister David Cameron pledged his ''full support'' for the culture secretary.