Police are investigating a number of threats against members of the Victorian parliament, as far-right extremists join protests over a controversial pandemic bill.
Protests this week on the steps of parliament have included threats to kill the premier after a doll depicting Daniel Andrews was thrown at a makeshift wooden gallows on Monday.
A protester was applauded by the crowd on Tuesday after she called for politicians to "dance on the end of a rope".
Despite some threats being posted to social media, Victoria Police are yet to arrest anyone involved.
Police did speak to the driver of a black Toyota Landcruiser, which was towing the gallows, and issued the 48-year-old Badger Creek man a warning related to traffic offences.
But Victoria Police say they are investigating "a number of recent incidents involving threats directed at members of parliament".
Alleged far-right extremist Imre Pelyva, 36, has been charged with incitement-related offences at the protests by the counter-terrorism unit and will face court next week, AAP has confirmed.
"As those investigations are ongoing and relate to security matters, it would be inappropriate to provide further details at this time," a Victoria Police spokeswoman said.
Several people had been charged over the past year for "threats directed at high profile members of the community, including members of parliament".
"Victoria Police takes any threat against a person extremely seriously, including both online and physical threats, and will investigate incidents to the fullest extent to hold offenders to account," the spokeswoman said.
Police acknowledged the incidents caused broader community concern and "the effects are not only felt by those who the threats may be directed at".
Politicians including Victoria's opposition leader and the deputy premier expressed their concern about the protests on Thursday morning.
It comes after Liberal MPs David Davis, Bernie Finn, Roma Britnell and Craig Ondarchie all attended the protests earlier this week.
Deputy Premier James Merlino said he had not seen "anything like this" in the almost-20 years he had been in parliament.
He said party leaders "should not at any time sidle up to far right extremists" or anti-vaxxers.
"It encourages people," he told reporters.
"Nazi imagery by people within the Liberal Party, violent extremist words, encouraging extremists - this leads to violence and that's what we've seen from the Liberal Party under the leadership of Matthew Guy."
Mr Guy said he planned to tell his MPs not to attend the protests, ahead of Thursday's parliamentary session.
"You won't be seeing anyone back out there," he told reporters.
"We are concerned about some of the elements that are there. There is an extreme element now associated with the steps of parliament.
"If people are making legal threats they should be charged."
Mr Guy said his family had been subjected to threats from people "associated with the extreme elements of the union movement".
"It's distressing for any politician," he said.
"It's kind of unhinged behaviour. We need common sense, rationality on both sides.
"No one endorses anyone associated with the hard right or hard left in any way in these protests."
