A landlord and a tenant have been arrested after a rental dispute turned violent inside a subdivided flat in Hong Kong.

Police received a report at about 11 a.m. on Sunday that a man had splashed suspected corrosive liquid on another man at a flat in a building on Prince Edward Road West near Portland Street in Mong Kok.

Officers wearing shields rushed to the scene and found a 41-year-old landlord and his 42-year-old tenant scuffling over the lease, during which an unknown liquid was thrown.

Firefighters were called in to conduct rapid tests and determined the liquid was not corrosive.

Both men were arrested on suspicion of common assault.

The landlord complained of wrist pain, while the tenant reported pain in his chest and hands, as well as a scratch on his wrist.