The Environment Agency has confirmed the presence of bird flu at two more farms in East Anglia as Suffolk remains under a regional prevention zone.
Last night, Defra revealed a commercial poultry premises in the Attleborough area had been affected by highly pathogenic avian influenza (HPAI).
A three kilometre prevention zone and 10 kilometre surveillance zone have been enforced around the infected site, the latter of which breaches the Suffolk border.
The Environment Agency has confirmed cases of bird flu at three more farms in East Anglia. Picture: Mark Bullimore Photography
The former area predominantly encompasses Snetterton, while the latter stretches from Garboldisham and Smallworth in the south to Little Ellingham in the north.
The whole of Attleborough is covered by the surveillance zone.
Defra added all birds at the site will be humanely culled.
The agency also confirmed HPAI was found at another premises near Gayton, in the Kings Lynn area of Norfolk.
The respective protection and surveillance zones have been enforced around that site.
Both Suffolk and Norfolk remain under the regional avian influenza prevention zone.
This was put in place after a number of HPAI findings in both wild birds and commercial poultry.
The zone means it is a legal requirement for all bird keepers in the county to follow strict biosecurity measures to help protect their animals.
However, it does not mean people have to house their birds.
It is hoped the new measures will mitigate the risk of further outbreaks of the disease.
So far, aside from the aforementioned farms, other sites in the Watton, Dereham and Cranworth areas of Norfolk have been affected by HPAI.