DENVER (CBS4) – Denver police have arrested the man they say set his girlfriend’s apartment on fire, leaving two other units damaged.

The fire was started before dawn Friday morning near 18th and Julian in West Denver. Police were originally called to the complex because of a domestic violence dispute. When they arrived the eight unit complex was on fire.

Chad Alonzo, 24, turned himself into police Sunday morning. He was arrested for first-degree arson and third-degree assault.