BAY HARBOR ISLANDS, Fla. — Israel Hernandez-Llach, a skateboarder and 18-year-old artist, was typically adept at dodging police officers while he tagged Miami Beach walls with his signature, “Reefa.”

But early Tuesday morning, after he rolled up to a shuttered McDonalds, his lookout with him, the police caught up with the teenager. Mr. Hernandez-Llach bolted, running through the streets and a building and over an iron fence, according to a report by the Miami Beach police. The officers ultimately stopped him, after firing a Taser to immobilize him, said Raymond A. Martinez, the Miami Beach police chief.

At 6:15 a.m., an hour after the police first spotted him, Mr. Hernandez-Llach, a former Miami Beach High School student and a Colombian immigrant, was pronounced dead at a nearby hospital. The teenager was in medical distress after being shocked by the Taser, Chief Martinez said, and paramedics were called.

Chief Martinez said that the cause of death had not yet been determined and that the department was waiting for autopsy and toxicology reports. Mr. Hernandez-Llach had no other injuries, the police said. The department is investigating.