Washington: Two patients in China have been diagnosed with plague, the deadly and infectious disease tied to historic pandemics, local media reported.

The people, from Inner Mongolia, were treated for pneumonic plague in Beijing's Chaoyang district, local health officials said on Tuesday, according to Caixin and state-media Xinhua.

The news outlets reported the patients received "proper treatment," and disease control measures and prevention methods have been taken.

According to Caixin, the patients were treated at Chaoyang Hospital, which has since replaced all chairs in its emergency room.

The Chinese Centre for Disease Control and Prevention said the patients were quickly isolated and health officials investigated everyone who could have been exposed to them, The New York Times reported. Chinese health officials also called the risk for further infections "extremely low."