Updated 4:42 p.m.:
A blaze that went to three alarms and destroyed an airplane hangar, two mobile homes and two trailers at Dixon Aviation has been deemed suspicious in nature, a Dixon fire chief told Patch.
Arson investigators were looking into the cause but according to Dixon fire Chief Aaron McAlister, police have had a number of law enforcement contacts at the location.
Apparently multiple suspects have had contact with police at the address, McAlister said.
The first alarm at Dixon Aviation -- 6711 Rio Dixon Road -- was pulled at 9 p.m., Thursday, the chief said.
"The investigation is ongoing," McAlister said, adding that anyone with information was asked to call 707-678-7060.
Investigators Friday were trying to determine the cause of a fire at a crop-dusting operation that destroyed a hangar, two mobile homes and two trailers, causing upwards of $500,000 damage, authorities said.
The first alarm at Dixon Aviation -- 6711 Rio Dixon Road -- was pulled at 9 p.m., Thursday, according to Dixon fire Chief Aaron McAlister.
Two more alarms followed, summoning firefighters from eight other agencies, including Davis and Vacaville, the chief told Patch in an interview.
The hangar housed two bi-planes with 500-gallon tanks and were used to dust crops in that mostly agricultural area, McAlister said.
Fire crews immediately ran into difficulties.
"We were hampered by lack of available water," McAlister told Patch.
"We had to request water tenders.
"It took at least an hour to bring the fire under control."
The crews were also hampered by power lines that had been burned and brought down by the flames, lying on the metal hangar and posing extreme risk to firefighters, the chief said.
The electric company cut power and sent crews out later to repair the lines, McAlister told Patch.
Firefighters pushed the two aircraft out of the hangar and called for tow trucks to get several vehicles away from the blaze, according to the chief.
One vehicle burned up and four others sustained heat or fire damage, McAlister said.
Damage estimates could run as high as $1 million, the chief said.
The American Red Cross assisted two of those left homeless, finding them temporary shelter and other necessities, McAlister said.
A call to Dixon Aviation could not be completed, as phone lines apparently also were damaged.