The threat was received early Friday morning but was determined to be “not credible” and no injuries were reported

The San Diego Registrar of Voters received a bomb threat early Friday evening, prompting a full-scale investigation, the county communications office confirmed. The San Diego County Sheriff’s Department took the lead and ultimately determined that the threat was not credible.

Registrars of voters' offices in Orange and Riverside counties were evacuated Friday evening after receiving bomb threats, but no explosives were located at either site.

Deputies evacuated the Orange County Registrar of Voters after it received a bomb threat at its Santa Ana office.

A bomb threat caused officials to evacuate the Santa Clara County Registrar of Voters Office in San Jose on Saturday morning, NBC Bay Area reported. The bomb threat was “communicated to” the registrar’s main facility on Berger Drive in North San Jose about 8 a.