A Petaluma school was placed on lockdown Wednesday afternoon after a reported explosion on campus, according to police.
Two students at Kenilworth Junior High School were arrested for lighting a "commercial grade explosive device similar to that of an M-1000," police said. No students or campus staff were injured in the incident, according to police.
Police said both students were arrested on the following charges: felony possession of an explosive device, felony vandalism, and conspiracy to commit a crime.
A bomb-sniffing dog was also walked through the campus and did not find anything else.
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