Mirabella suggests attack by her own party

Liberal candidate Sophie Mirabella has suggested her own party has been involved in undermining her campaign to reclaim the Victorian seat of Indi.

Asked to comment on media reports her campaign is already lost, Ms Mirabella told ABC TV on Monday she'd rather not say where they came from, adding: "Quite frankly, it doesn't really matter what people in Collins Street say."

The former Liberal frontbencher came under fire in April when she revealed her election defeat in 2013 to independent Cathy McGowan cost a regional hospital $10 million in funding.