A sword-wielding attacker in California chopped off a man's hand Sunday, police said. 

The attack happened near a home in Riverside, 55 miles east of Los Angeles. Authorities received a call around 10:30 p.m. about a severed hand found on a sidewalk. 

A short time later, they were notified about a man at a hospital who said his hand was cut off during a sword attack. The victim is a man in his 60s who underwent surgery and was expected to survive. 

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California intersection where the sword attack happened

A man's hand was chopped off by another man wielding a sword in a California neighborhood. Police said both men were homeless and the attack may have been related to a ongoing dispute. (Google Maps)

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The victim and suspect are homeless and knew each other, police said. 

"This assault may have stemmed from a recent and ongoing dispute both have been having with each other," a Riverside police spokesperson told Fox News Digital. 

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Authorities said the incident is still under investigation.