The deputy leader of the Labour party Harriet Harman has said she will call a vote in the House of Commons on whether Jeremy Hunt's actions should be referred to the independent investigator on the ministerial code.
She told BBC Breakfast that Mr Hunt "broke the ministerial code" and "as far as David Cameron is concerned [that] is perfectly acceptable".
"It is not acceptable to us that these rules should have been broken and we are going to call a vote on it in the House of Commons."
Jeremy Hunt has faced stinging criticism over his performance at the Leveson Inquiry, adding further pressure on the Culture Secretary.
The events surrounding Culture Secretary Jeremy Hunt's involvement in the BSkyB bid are being unpicked before the Leveson Inquiry
The media standards inquiry is scrutinising the Culture Secretary's links with News Corporation while it was bidding to control BSkyB.