article_snippet: 911 was called at 8:40.
article_snippet: Scroll down for video .
article_snippet: Eric Pointe told Orange County Register.
article_snippet: Assistant Superintendent Kevin Lee with Placentia-Yorba Linda Unified School District says classes were dismissed for the day at 11am .
article_snippet: Assistant Superintendent Kevin Lee with Placentia-Yorba Linda Unified School District also confirmed there there was an 'emergency medical situation' involving a teacher.