Police are responding to reports of an altercation in Worthing on Monday afternoon (July 20).
Officers were called to Elizabeth Road shortly after 2.45pm after a member of the public found a machete covered in blood.
One person has been arrested nearby on suspicion of grievous bodily harm with intent and possession of a knife / bladed article in a public place. They remain in police custody at this time.
Efforts are currently ongoing to find any person injured in the incident, to check their welfare and to establish the full circumstances of the matter.
Anyone who saw the altercation, or who has any information about what happened, is asked to contact police online or by calling 101 quoting serial 774 of 20/07.