OAKLAND (CBS SF) — An email outage Saturday left the entire Oakland Police Department, including command staff, without access to email for much of the day, city officials said Monday.

Oakland Chief Information Officer Bryan Sastokas said an internal system hardware failure on one of the city’s email servers caused the outage, which started at about noon Saturday.

The outage affected users from various city departments but did not affect all city workers. The affected users could not send or receive email, Sastokas said.

Police spokesman Officer Frank Bonifacio said the outage impacted the entire Police Department, including command staff.

Email service was restored at about 11:30 p.m. Saturday, Sastokas said.

Oakland police were recently targeted by hackers who intermittently took down police and city websites, but Saturday’s outage was a basic hardware failure and not at all related to that, Sastokas said.

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