Mongolia has reported its first outbreak of African swine fever, just five months after the deadly pig disease was first discovered in China.

The Mongolian outbreak occurred in a “backyard” pig farm in the centre of the Bulgan province, which borders Russia. Now it has spread to the Tuv, Orkhon and Dundgobi provinces of Mongolia. Official have quarantined the provinces and are inspecting pork in restaurants, food shops as well as meat markets.

A total of 214 pigs have been slaughtered and their remains destroyed after 85 cases of the pig disease were found at the operation. More work need to be done to determine whether the disease arrived in Mongolia from China or Eastern Europe, experts said.