Two students have been killed and three others injured by a gunman who opened fire at a High School in California.
The shooting took place at the Saugus High School in Santa Clarita, north of Los Angeles, minutes before the school day was due to begin.
A 16-year-old male suspect, who was also injured, has been taken into custody.
Many US schools have implemented active shooter drills in recent years after fatal attacks around the country.
