A fight at an East Harlem pool spilled out onto the street last night, leaving one man stabbed to death, cops and sources said.

Aaron McMillon, 25, of Astoria, Queens, was found just after 7 p.m. lying on First Avenue near East 117th Street with deep cuts to his stomach, according to police reports.

Sources said McMillon was chased from the nearby Jefferson Pool for several blocks before his assailant caught up to him and stabbed him to death.

McMillon was taken to Harlem Hospital where he was pronounced dead. No arrests were made.