Two schools were put on lockdown for about a half-hour Thursday after echoes of gunfire from Camp Roberts were mistaken for a possible danger to the area.
No one was injured, and the school was quickly determined to be safe.
The San Luis Obispo Sheriff's Office responded to a report of gunshots fired in the area near Lillian Larsen Elementary School in San Miguel.
Out of caution, that school as well as nearby Almond Acres Charter Academy were placed on lockdown at about 12:17 p.m.
Both schools were released from lockdown and resumed normal activities at 12:51 p.m.
The gunshots were part of training exercises being conducted at Camp Roberts.