CHULA VISTA: A fire at an auto-parts store Tuesday night caused $2 million in damage to the building and the contents of the store, a San Diego fire dispatcher said yesterday.

Firefighters have classified the blaze as “unintentional,” but the exact cause has not been determined, the dispatcher said.

The fire was reported about 10:30 p.m. at Kragen Auto Parts on Broadway near E Street. It was mostly extinguished by 11 p.m. Dispatchers at the time said mattresses and rubbish that were piled up against the building also burned.

The San Diego Fire-Rescue Department also handles emergency calls for Chula Vista. –A.M.