A conservative Australian politician who posted a photo of himself on Facebook holding a gun in a dig at environmentalists was reported to police and accused of being insensitive after a mass shooting at a U.S. school.
Police said they would consider whether an investigation was warranted.
Mr Christensen wrote, "You gotta ask yourself, do you feel lucky, greenie punks?".
The Greens have accused Mr Christensen of giving licence to people to behave in a violent way towards others who hold different views.
George Christensen is doubling down on his real tough guy Facebook post even as Malcolm Turnbull has denounced it being "very inappropriate" (yeah, no shit mate). The MP defended his post as "a joke".
The Australian Federal Police (AFP) said it was evaluating the post.
He claimed it was a tongue-in-cheek reference to the Dirty Harry film franchise in which a police officer played by Clint Eastwood takes on "people who are conducting illegal activity, such as the greens are".
Mr Christensen went on to say that he saw no problem with the timing of the post, despite the recent shooting in the U.S., as it had nothing to do "with the situation in Australia".
But he took it down at the request of acting Nationals leader Nigel Scullion, who has taken over from embattled leader Barnaby Joyce while he's on enforced leave over his affair with a former staffer.
Greens Party leader Richard Di Natale reported the post to Australian police on Sunday and asked Prime Minister Malcolm Turnbull to force Christensen to take it down, noting the timing of the post just days after 17 people were killed in the deadliest high school shooting in USA history.
Mr Christensen had posted the photo as a comment underneath a Facebook post that showed him visiting a gun range.
Labor called on Mr Christensen to apologise.
Greens Senator Sarah Hanson-Young has lodged her own complaint over a death threat she received from an alleged supporter of Mr Christensen.
Queensland police had already "looked at it, laughed at it and basically dismissed it", he said.