STOCKTON — A raging, smoky fire brought out six engines and three trucks to put out a two-alarm blaze Monday evening in east Stockton.

The fire at the East Stockton Transfer Recycling Station, 2435 E. Weber Ave. at Filbert Street, apparently started in a Dumpster and spread to highly flammable materials including cardboard, paper, plastic, wood and clothing, according to a Stockton Fire Department spokesman.

The fire was reported about 6:15 p.m. It sent up thick dark plumes of smoke over the eastern portions of the city and cut visibility to zero on nearby Filbert Street. Traffic in the area just north of the Crosstown Freeway was blocked to allow fire crews to access the area.

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Due to the material that was burning, including tightly packed cardboard, the fire proved stubborn and took a massive amount of water to bring under control. Crews used large equipment loaders to separate the material, allowing firefighters to dump water on it to put out hot spots.

The Fire Department reported there were no injuries to either civilians or firefighters.

This is the fourth multiple-alarm fire that Stockton firefighters have responded to in less than a week.

Contact reporter Joe Goldeen at (209) 546-8278 or jgoldeen@recordnet.com. Follow him at recordnet.com/goldeenblog and on Twitter @JoeGoldeen.