San Mateo County issued an order on Sunday for residents to shelter in place and close all windows to avoid spreading smoke from a fire at a Redwood City metals-recycling plant.

Tonight, a Stanford University community alert encouraged residents and persons working in the area to keep their windows closed and to avoid heavy exercise outdoors.

Personnel from the Stanford University Department of Public Safety (SUDPS) are reportedly inspecting the campus for areas of poor air quality and have reached out to the Redwood City fire authorities, said Bill Larson, public spokesman for SUDPS.

According to the Palo Alto Weekly, the fire was reported at 1:21 p.m. with firefighters expected to contain the flames by 7 p.m. Some smoke could be seen earlier today from University Ave. and U.S. Hwy 101 in Palo Alto.