Berlin - A fresh bird flu outbreak has been discovered in Germany, with a state laboratory confirming the presence of the H5N1 virus, an official veterinarian said on Thursday.

The infected bird was in a private hen-run at Bensdorf, a village 85km west of Berlin, said state of Brandenburg vet Hans-Georg Hurttig. All 30 fowls were immediately killed and removed.

He said scientists believed it was a spot outbreak only.

The case would only be declared official when a federal laboratory confirmed it. A Brandenburg spokesperson said it was still officially considered a "suspected case".

A week ago, the avian influenza virus was discovered at Altglobsow, 75km north of Berlin, in a hen-run with 11 birds. - Sapa-dpa