National Party Federal President Larry Anthony confirmed on Friday that a complaint has been made about deputy PM Barnaby Joyce.
“The Federal Party can confirm a formal complaint has been received,” Mr Anthony said.
“All complaints are taken seriously and treated with strict confidentiality and given due process.”
A spokesman for Mr Joyce said the complaint was defamatory.
“Mr Joyce said he had been made indirectly aware and described the claims as spurious and defamatory,” the spokesman said.
“He said allegations of wrongdoing should be immediately referred to police so that the veracity of any claim could be properly tested.”
EXCLUSIVE: The National Party has received a sexual harassment complaint against Barnaby Joyce. Joyce has this week been informed of the allegation by National Party leadership who are taking it very seriously. @AnthDeCeglie https://t.co/K9r47m3bWD
— Sharri Markson (@SharriMarkson) February 22, 2018