A bird cull being carried at a farm at Redgrave has been completed.

A spokesperson for the Animal & Plant Health Agency (APHA) said the cull of around 23,000 birds at the breeder poultry unit run by Banham Group finished late on Thursday.

'The cull is complete. We'll be moving shortly to cleansing and disinfecting the premises,' he said.

Meanwhile, an epidemiological investigation looking at how the disease might have entered the enclosed unit, and whether it might have spread by looking at the movements off the site, is ongoing.

Foot patrols by Suffolk and Norfolk County Council officials are handing out information packs as they visit premises, primarily within an inner 3km zone, and moving out into a wider 10km radius surveillance zone. An epidemiological report on the first UK outbreak - Redgrave is the ninth - in Lincolnshire on December 16 is still awaited.