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Police departments across Salt Lake County responded to numerous threats Tuesday against day cares and preschools.

SALT LAKE CITY — Police departments across Salt Lake County responded to numerous threats Tuesday against day cares and preschools.

But Salt Lake City police said there was no evidence the threats are credible.

Numerous threatening calls were placed Tuesday starting about noon.

"A male is calling schools stating he is in the parking lot and threatening violence on the school," according to Salt Lake police.

The threats had officers from Salt Lake City, Unified and Cottonwood Heights police departments scrambling to different locations. But all the threats have turned out not to be real, according to police.

"SLCPD does not have any information at this time that would make us think that these threats are credible," Salt Lake police said in a prepared statement Tuesday afternoon.

Students at several schools were ordered to shelter in place as officers responded to the threats. William Penn Elementary, Evergreen Junior High, Roosevelt Elementary, Churchill Junior High and Millcreek Elementary were all ordered to shelter in place, according to Granite School District.

In the Salt Lake School District, the Open Classroom, Liberty Elementary, Wasatch Elementary, and Ensign Elementary were all placed on lockdown, according to a letter sent to parents and employees of the school district.

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In the letter, Superintendent Lexi Cunningham said school district employees "helped ensure the safety of our students. All of our schools regularly conduct emergency drills so they are prepared for situations just like this."

Unified police also issued a brief statement, saying that officers were "actively checking schools in the Millcreek area to ensure children's safety. We do not have any information at this time that would make us think that these threats are credible."

As of Tuesday, no arrests had been made.

This story will be updated as additional information becomes available.