Defra has set up a 3km protection zone around the farm.
BIRD flu has been confirmed on a farm in Slaggyford.
The UK's chief veterinary officer said that H5N8 avian flu had been found in a small flock of chickens at a farm described as being near Haltwhistle but which, on the Defra website, is identified as being in Slaggyford.
A 3km protection zone and a 10km surveillance zone have been put in place around the infected premises to limit the risk of the disease spreading.
The flock contains about 35 birds. A number have died and the remaining live birds at the premises are being humanely culled. A full investigation is under way to determine the source of the infection.
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