Two people have been killed and more than 20 people have been injured after a knife attack in China.

A man in black has been spotted wielding a knife in each of his hands at Zhenxiong People's Hospital in Yunnan province, according to local media.

At least 23 people are thought to have been injured in the attack.

Footage shows police vehicles and more than 10 police officers outside the hospital.

Some reports suggest authorities have made an arrest, but this is yet to be confirmed.

"It happened around 11 in the morning… it's still a bit chaotic, they're still determining the numbers," one local resident told The Paper.

Other footage shows panicked patients and hospital staff helping victims.

Firearms are banned across China, however the country has seen a series of knife attacks over recent years.

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Two people were killed in August last year after a man with a history of mental illness attacked people with a knife in Yunnan.

Seven others were also injured during the horror incident.

Just six months before that, six people were killed and one wounded in a kindergarten stabbing in southern China's Guangdong province.

In August 2022, three people were killed and six were wounded in a knife attack at another kindergarten in southeast China's Jiangxi province.