A four-day long fire known as the Waldo Canyon fire spread to 18,500 acres late Wednesday, destroying 300 homes in its path outside Colorado Springs. One of nine major wildfires currently raging in the state, officials said the Waldo Canyon fire is about five percent contained. Fire officials say they do not know the exact cause of the blaze, and the FBI has joined the investigation. Around 32,000 people are out of their homes. The state’s wildfires has already cost and estimated $40 million—a number which does not include the cost of the Waldo Canyon fire. President Obama is scheduled to visit the region on Friday.