The 59-year-old Burbank man who was found dead in front of a house Friday night died of a heart attack, authorities said Monday.

The man — identified as Artashes Sarkisian — had suffered from heart disease, said Los Angeles County Assistant Chief Coroner Ed Winter.

Authorities found Sarkisian near the front lawn of a house in the 300 block of Via Montana around 7:30 p.m. near a dog, said Burbank Police Sgt. Gerry Misquez.

Sarkisian lived in the neighborhood, police said. It's unclear if he was walking the dog when he died.

-- Brittany Levine and Alene Tchekmedyian, Times Community News

Follow Alene Tchekmedyian on Google+ and on Twitter: @atchek.