SAN ANTONIO -- Police are looking for a person they believe started a house fire on the city's east side.

Authorities said it happened around 5 a.m. at a residence about a mile away from Lincoln Park.

When firefighters arrived on scene, they found the entire home engulfed in flames. Then, they found the fire started near the water heater. Residents were able to make it out safely.

Authorities said the person they believe started the fire is someone they have had problems with in the past.