State MP Jason Costigan has been expelled from the LNP following allegations of harassment.

The party has made the decision at a state executive meeting on Friday.

The executive acknowledged it was a “significant” decision.

“We expect our elected representatives to meet the highest standards,” the party said in a statement.

Mr Costigan was initially suspended on Wednesday after a complaint was raised by a member of the public.

The member for Whitsunday maintains the allegations involving two women are untrue.