An anti-Islam group has burst into an Anglican church on the New South Wales Central Coast, disrupting Sunday service and criticising Muslims.

Members of the group, Party for Freedom, were dressed as Muslims when they barged into the Gosford Anglican Church run by outspoken minister Father Rod Bower.

They pretended to pray while playing Muslim prayers on a loudspeaker and criticised Islam before walking out.

The group posted photos of their stunt on social media, claiming it was a protest against Fr Bower’s support for Islamic leaders and multiculturalism.

The Anglican church’s billboard has its own social-media presence and often displays pro-immigration messages.

Fr Bower has described the incident as a racist stunt which traumatised many in his congregation.

Police are reportedly investigating the incident.