Ms Washington has written to the Clerk of the NSW Parliament calling for an investigation into the four accounts, which she suspects may be controlled by a Liberal Party supporter.

The accounts, which appear to be owned by local constituents, have been posting in sync with Liberal Party announcements in the Port Stephens electorate in recent weeks.

The Newcastle Herald sent direct messages to the accounts on Monday morning seeking to speak with account owners.

After advising a staff member of Port Stephens Liberal Duty MLC Catherine Cusack of Ms Washington's complaint at lunchtime on Tuesday three of the four accounts responded to the Herald within an hour.

None of the profile users was prepared to speak with the Herald.

One of accounts, which appeared to be operated by a woman who said she had campaigned tirelessly for residents in the Red Zone, was deleted on Tuesday afternoon. 

Another account was deleted on Wednesday night.

So-called social media trolling and claims of harassment, from both major parties, have become common place in recent state and federal election campaigns.

Ms Cusack said she was disgusted that Ms Washington had suggested that one of her supporters may be connected to the accounts. 

"Kate Washington has crossed a very big line here with me - and I put her on notice I will not tolerate smear and bullying...," she said. 

"I struggle to find words to describe my fury at this disgusting behaviour by a Member of Parliament. She is a bully. She should pick on someone her own size..."

But Ms Washington said "enough was enough". 

"You can’t have a situation where fake profiles are being used to spread misinformation, distort public debate, promote one candidate and attack another without being called out," she said. 

“I doubt very much the candidate herself is behind this, but it’s pretty bad if your only defenders are fake profiles set up by your own political party. It goes to show there is something seriously wrong with this Government’s priorities. The community is obviously not buying their spin, so now they’re resorting to this type of dodgy behaviour to get their messages across."

“I want people to express their opinions on my Facebook page, especially if they have a different view or they want me to consider another angle of an issue. That happens often, and I welcome it."