UPDATE 1:13 p.m. Thursday, Dec. 13, 2018 - The Redding Police Department has confirmed that similar emails have gone to other locations throughout the country. The Central California Intelligence Center has confirmed the same email has gone to businesses, government agencies, schools and private citizens throughout the nation beginning at 10:30 a.m. Wednesday morning. 

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REDDING, Calif. - A school in downtown Redding was put on a temporary lockdown following an email threat.

School officials said that the lockdown at Pioneer High School began around 11 a.m. on Thursday. 

The lockdown was prompted by a threatening email, according to Kelsey Cloney with the Shasta Union High School District. 

The email was reported to the Redding Police Department and it was determined that it held no credibility. 

The school remained on lockdown for 45 minutes as police worked to make sure the campus was cleared. The lockdown has now been lifted.