A Temporary Control Zone was yesterday imposed in part of Co Armagh following a third outbreak of avian influenza in Co Monaghan.
The strain of avian influenza, called H5N1, is often fatal to birds that catch it however, poses very little risk to humans.
Robert Huey, chief veterinary officer for Northern Ireland, said Department of Agriculture (DAERA) staff would "continue to work very closely" with their counterparts in the Republic.
"The location of this infected premises lies close to the border between Monaghan and Armagh," he said.
"I have therefore declared a Temporary Control Zone (TCZ-B) in that part of NI which lies within 10km of the infected premises.
"The declaration of the TCZ-B will involve premises within this zone having to adhere to strict biosecurity protocols, recording movements on/off holdings and a requirement to seek licensing for any movement of poultry or poultry related products into or out of the zone".
