PASSAIC, N.J. (AP) — Officials plan to tap a river to help put out a huge fire at a northern New Jersey recycling plant they say could burn for days. The blaze broke out around midnight at the Atlantic Coast Fibers plant in Passaic. More than two dozen fire departments responded. Mayor Hector Lora says there were at least two explosions. Water from firefighters’ hoses froze. One firefighter was treated for exhaustion and another after slipping on ice. All the plant’s employees are accounted for. Officials say the cause of the blaze is being investigated. It is not considered suspicious because fires are not uncommon in recycling plants.