Anger over Wallsend mosque attack

The NSW government and Jewish community have condemned an attack on a mosque in Newcastle and issued a call for "community harmony".

NSW Citizenship and Communities Minister Victor Dominello on Friday appealed for help in bringing the offenders to justice.

"Attacks on places of worship whether those places are Muslim, Christian, Jewish, Buddhist, Hindu or other are unacceptable in a society that values religious freedom and social tolerance," he said in a statement.

Two unidentified men attacked the Wallsend mosque minutes after a group of children had finished a scripture class on Monday evening, The Newcastle Herald reported.

CCTV footage of the attack was uploaded to YouTube:

Seven people were trapped inside when one man with a large tattoo of a cross on his neck attempted to gain entry.

He kicked open the fence gate, hurled an object at the mosque's front door and then kicked the front door.

Both men tried to knock over the front fence before one of them shouted what appeared to be abuse.

Vic Alhadeff, chief executive of the NSW Jewish Board of Deputies, said religious bigotry had no place in Australia.

"We strongly condemn attacks on all faith groups, whether it be mosques, churches or synagogues," he told AAP on Friday.

Mr Dominello said he had asked the Community Relations Commission to offer its assistance to police.

He said they could "liaise with the mosque and local community representatives to determine steps that can be taken to promote community harmony going forward".

A website for the Newcastle Muslim Association states the local Muslim population has grown significantly during the past five years and the mosque can no longer accommodate prayer sessions, forcing the association to hire the adjacent Masonic Hall.

"We are also experiencing major difficulty with parking and in recent times, this has caused a negative impact on the surrounding neighbourhood," the website states.

The association has paid $1.45 million for an 8800sq m block of land to build a much larger mosque at an additional cost of $5 million.

It will be located about five minutes' drive from the current mosque, the website states.

Police later released images of the men and said they had launched an investigation into the incident.

"There is nothing to suggest that this is a coordinated attack," said Newcastle crime manager Detective Chief Inspector Wayne Humphrey.

"It appears to be the actions of drunk hoodlums who were walking past."

Anyone with information about the identity of the two people is urged to contact Newcastle City Police or Crime Stoppers on 1800 333 000.