SHIZUOKA – The Shizuoka Prefectural Government said Tuesday that a classical swine fever (CSF) outbreak has been confirmed at a pig farm in the prefecture.

Some 2,900 pigs at the farm in the city of Fujinomiya will be culled.

This is the fourth confirmed case of CSF at a pig farm in Japan this year. The second case was found in the same city in March.

The farm reported the deaths of some 50 piglets to a local livestock hygiene center Monday morning, according to the prefectural government.

After a genetic test by the prefecture showed a positive result, infection was confirmed in an examination conducted by the central government Tuesday.