San Bernardino County, California (KTLA)-On Friday morning, firefighters reacted to a fire on multiple ships near a lake in San Bernardino County, California.

According to the San Bernardino County Fire Department, after receiving a call about the smoke and fire at the Lake Arrowhead Pier, the staff arrived at about 4 am and found that the ship was engulfed by flames and might spread to the pier.

The crew quickly manipulated a nearby firefighting boat to fight the flames on the ship’s platform.

The fire destroyed the dock lines of several ships, allowing them to float freely on the lake when they caught fire.

Officials said that firefighters must surround burning ships and extinguish the flames to prevent them from spreading to other places and causing greater damage.

“ferry [and] Dock fires pose a danger to firefighters, as both may sink, which makes firefighting boats an important resource for fighting fires,” fire department officials said at a press conference.

According to the fire department, it takes about 20 minutes to extinguish the fire.

Seven ships were destroyed and five other ships were damaged. The pier also suffered major damage.

After the fire was extinguished, the crew spent hours on maintenance and salvage operations. Hazardous materials workers must also respond to the scene to check if any liquids or other dangerous substances have leaked into the lake.

The picture shared by the fire department showed that when firefighters used hoses to put out the fire, the fire on the ship was burning.

After the incident, the wharf and several wild boars were severely burned.

Officials said that the cause of the fire is still under investigation and there are no further details yet.