Students were evacuated Tuesday morning at Alhambra High School after a report of a natural gas odor on the campus in the western San Gabriel Valley.
Aerial video showed students gathered on an activity field outside the high school. There were no reports of injuries.
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A hazardous materials team responded to the campus. The report was received at about 7 a.m.
The odor eventually dissipated, but the source could not be determined.
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