A Mt. Diablo State Park fire consumed more than 800 acres of Contra Costa County land Sunday evening with its heavy smoke even visible as far as San Francisco, Inquisitr reported Monday.

Authorities said that the Mt. Diablo fire, which began to take its course at around 1:15 p.m., forced many people to evacuate the surrounding area on Sunday.

Meanwhile, San Francisco Giants game spectators revealed that they saw the heavy smoke of the fire during the game. Many of them even took photos from the stands.

KTVU reported earlier that the Mt. Diablo State Park fire had spread to 15 acres at around 2:15 p.m. and continued to consume more land leading to 350 acres at around 5 p.m., almost five hours after it began.

The California Department of Forestry and Fire Protection said in a statement that the Mt. Diablo fire started on the edge of Mt. Diablo State Park about 15 miles northeast of San Francisco, adding that about 50 to 75 homes on Oak Hill Lane, Curry Canyon Road were under evacuation orders a few hours after the fire began to spread.

More than 200 fire crew members from different agencies responded right away and fought the strong flame using helicopters and air tankers.

Inquisitr reported that Sherriff's Office Spokesman Jimmy Lee issued a warning to the residents, asking them to evacuate and leave their homes immediately by passing through the Morgan Territory road.

The evacuees of the incident were sent to the Clayton Community Library on Clayton Road. In addition, Lee recognized the idea that more residents will be put to evacuation orders later on if the fire continues to grow.

CalFire Battalion Chief Mike Martin explained that high temperatures and the constant slight breeze continue to fuel the fire, which is heading towards south along the park's boundary.

Firefighters, who are still responding to the Mt. Diablo fire, are from San Ramon Valley Fire District, East Bay Regional Park District, CalFire, and the Contra Costa Fire District.

Updated reports ted that the Mt. Diablo fire was 10 percent contained by evening.

On the other hand, Clayton Mayor Julie Pierce noted that the Mt. Diablo fire greatly resembles another incident in August 2, 1977, where a different blaze was caused by two lightning strikes, charring almost 6,000 acres on the north side of Mt. Diablo in less than 24 hours.