Bushfire Crisis Summary:

* One man died in Batlow and four firefighters were injured overnight

* The Currowan fire in the state's south jumped the Shoalhaven River, creating the Morton fire which threatens the Southern Highlands

* 'Hundreds' of homes have been lost, with an impact assessment due this afternoon

* RFS Commissioner Shane Fitzsimmons is 'disappointed' the Prime Minister did not tell him about deploying army personnel

* Premier Gladys Berejiklian says NSW is in 'uncharted territory'

Eden residents told to evacuate

There is now an "imminent" risk from the Border fire burning near the Victorian border.

The RFS said the fire has been burning south of Eden and has impacted Wonboyn, Kiah, Narrabarba. It has also spread west toward Burragate.

'There is no dispute in this country about the issue of climate change': Morrison

"There is no dispute in this country about the issue of climate change, globally, and its effect on global weather patterns, and that includes how that impacts in Australia," Mr Morrison has told a press conference.

"I have to correct the record here, I have seen a number of people suggest that somehow the government does not make this connection. The government has always made this connection and that has never been in dispute.

"What we are focused on is what our response is and we set that out very clearly ... That response, as it always has, will continue to be upgraded to make sure we have met the commitments we have made."

He said that "climate change has impacted on the world's weather patterns [and] has led to where we are here today to some extent, combined with many other factors, the drought being the most significant".

11.39am 05-01-20:

Morrison announces national bushfire recovery agency

Prime Minister Scott Morrison has announced a national bushfire recovery agency will be established and led by former Australian Federal Police Commissioner Andrew Colvin. 

"It will be modelling its operations closely on the successful response provided to the North Queensland floods," Mr Morrison said.

He said the agency would be "drawing on a series of support measures" such as providing payments to support small businesses and councils to re-establish critical infrastructure, as well as providing assistance to remove carcasses of animals caught in the fires.

"That is a fairly grisly operation but that needs to be done and it needs to be done as soon as possible," Mr Morrison said.