A SATANIC temple has sparked outrage by unveiling a giant statue of a winged goat-headed demon in the Arkansas state capital.

Devil worshippers turned out to cheer the figure, called Baphomet, after arranging a rally to protest a Ten Commandments monument already on the grounds.

About 150 Satanists, atheists and Christians attended the First Amendment rally on Thursday.

The Satanic Temple says the Ten Commandments monument violates constitutional freedom of religion rights.

They say the installation of their seven foot-tall statue showing the 14th century idol seated and accompanied by smiling children demonstrates religious tolerance.

Satanic Arkansas cofounder and rally organizer Ivy Forrester said: "If you're going to have one religious monument up then it should be open to others, and if you don't agree with that then let's just not have any at all."

The statue of Baphomet can't be installed under a 2017 state law that requires legislative sponsorship for consideration of any monument.

The Satanist group removed the statue later Thursday.

The Ten Commandments monument at the Arkansas Capitol was sponsored by Republican Sen. Jason Rapert and installed quietly in 2017.

Less than 24 hours after its installation, a man drove his car into the monument, smashing it to pieces.

The same man also destroyed a Ten Commandments monument outside Oklahoma's state Capitol.

The Satanic Temple ended its campaign to install Baphomet there, after Oklahoma's Supreme Court ruled the Ten Commandments monument was unconstitutional and it was taken down.

Rapert said in an online statement that he respects the protesters' First Amendment rights, but also called them "extremists" and said "it will be a very cold day in hell before an offensive statue will be forced upon us to be permanently erected on the grounds of the Arkansas State Capitol",

There was a significant police presence at the peaceful rally.

A small group of counter-protesters holding signs with Bible verses stood quietly nearby, occasionally singing Christian songs.

One speaker a Christian minister was interrupted by a yelling counter-protester, but police escorted the man who was holding a large wooden stick away from the stage.

The Satanic Temple wants to join a religious discrimination lawsuit against Arkansas brought by the American Civil Liberties Union. A judge has to yet rule on whether the Satanists can join the case.