Classes were canceled on Monday at Solano Widenmann Leadership Academy in Vallejo after a weekend copper wire theft robbed the school of power.
Vallejo City Unified School District sent a message to parents saying the theft was discovered Saturday morning, by staff hosting a basketball competition at the middle school.
All electricity was cut to the school sometime between Friday evening and early Saturday morning.
"Ensuring the safety and security of our school community remains our top priority, and we are taking immediate steps to assess and strengthen our security measures," the district said.
The school's teachers spent the day on Monday putting together learning packets and adjusting lesson plans. The district said that starting on Wednesday, children will be able to attend class at alternative learning hubs on other school campuses.
"We anticipate the school will likely be closed for a week while repairs are underway to restore the electrical systems," the district told parents. "However, if the closure extends beyond a week, we are preparing to identify and arrange an alternate placement for students to ensure their education continues with minimal disruption.
"We will keep you updated on the progress of the repairs and provide details about any potential relocation if necessary."
District Superintendent Ruben Aurelio told parents work has already started to repair the problem, and the district is committed to getting students back to school safely as soon as possible.
"We understand the inconvenience this unexpected closure may cause and want to assure you that the district is working diligently to resolve the situation as quickly as possible," Aurelio wrote.
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Aurelio said parents with questions or concerns can contact the school office at (707) 556-8600 or the district office at (707) 556-8921.