Location: NJ-PIKE: NSW (S/B) WESTERN SPUR @ MM 113.5. Desc: NJSP/FD Reporting 4 Tractor Trailors were involved in a 4 truck mva which turned 1 into a fully involved fire and all the rest were jack-knifed. All lanes were blocked and down for hours. Bergen County Haz-Mat also req. for Unk. Amount of Diesel Fuel into storm drain. Mutual Aid from basically all of southern bergen co.fire departments. 1 minor injury was reported. Happened at approx. 03:00 on Saturaday Morning (12/19/09).