(Woodburn, OR)  --  At least one person is injured following a ten-car pileup on I-5 that police say was prompted when a large band saw fell from a truck.  The crash happened last night in the southbound lanes near Woodburn.  The band saw reportedly fell from the bed of a pickup truck, crashing into vehicles and causing one car to roll several times.  Witnesses say the truck's driver got out and tried to retrieve the band saw but ran back to his truck and left the scene once drivers started colliding with the saw.