Chris Minns, the Premier of New South Wales state, where the attack took place, told a news conference parliament would return on December 22 to hear “urgent” reforms, including capping the number of firearms allowed by a single person and making certain types of shotguns harder to access.

The state government will also look at reforms, making it harder to hold large street protests after terror events, to prevent further tensions.

The government has already promised sweeping reforms to gun laws.