MANORVILLE - The wildfire that charred about 1,100 acres in Manorville and Ridge last month has been classified as arson in a preliminary report by the state's Department of Environmental Conservation (DEC).Suffolk police, however, say they are still investigating. In a statement, police said, "At this point in time, the fire is still undetermined by the SCPD. It doesn't appear the fire was started from natural causes, but that doesn't necessarily mean it was intentional."The fast-moving fire broke out in the woods by the Brookhaven National Lab and quickly moved into Manorville, prompting residents to be evacuated and officials to declare a state of emergency. More than 100 Long Island fire departments responded.DEC under fire over lack of controlled burnsManorville wildfire brought under controlFirefighters battle massive brush fire in Ridge-Manorville area