Los Angeles, Dhu-AlQa'dah 13, 1437, August 16, 2016, SPA -- Firefighters in northern California made headway Tuesday against a destructive wildfire as authorities arrested a man accused of setting it and others, according to dpa. Authorities arrested a 40-year-old construction worker on suspicion of arson in "numerous" fires in rural Lake County in the past year, state fire authority Cal Fire said in a press release. Lake County is about 160 kilometres north of San Francisco. The latest wildfire tied to the suspect, the so-called Clayton Fire, began Saturday and has since burned more than 1,600 hectares and destroyed more than 175 structures. Firefighters had the fire 20 per cent contained Tuesday, Cal Fire said. The Clayton Fire continued to threaten another 1,500 structures. --SPA 22:25 LOCAL TIME 19:25 GMT www.spa.gov.sa/w