Police were called to Mayfield Grove just after 10pm last night, where they found the 23-year-old suspect in the street.
A 48-year-old man was found with serious injuries inside a nearby flat, and was pronounced dead at the scene by ambulance staff.
The arrested man was taken into custody, where he remained for questioning this morning. Officers were still at the scene of the incident today.
North Yorkshire Police is now appealing for witnesses and information about the incident. Anyone who was in the Mayfield Grove area last night and saw any suspicious activity is asked to call the force on 101.
Alternatively, to report information anonymously, call Crimestoppers on 0800 555111. The incident reference number is 12210072144.
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