Police and teachers at Northville High School place the school on lockdown after threat is made.

Northville High School put on alert as police investigate threat.
This story has been revised with new information from Northville Township Police and Northville Public Schools on the investigation and student dismissal plans.
Northville High School was locked down Tuesday, Nov. 10, when it received a threatening call around noon, which triggered a massive police response and the closure of Six Mile Road.
Officers are still investigating the threat, which school officials described as probably not serious, said Northville Township Police.
Police were equipped with resources to conduct a search of the school, including a K-9 dog; and neighboring police agencies assisted with the search.
They closed Six Mile Road around the high school while they were investigating.
Northville Public Schools implored parents to NOT go to the school and instead parents were directed to Ward Church, 40000 Six Mile Road, to “wait for updates” as the school continued to operate.
The school remained closed to students while officials followed up their ALICE emergency response protocol.
In an update at 1:42 p.m., the district stated that it was preparing to dismiss school.
Police remain on the scene making sure the building is safe, the district stated. More details to come about the dismissal plan.
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Earlier, the school administration stated buses would be offered when it is clean.
The district also noted it knew of another school having its issue on Tuesday and a Wayne County high school that had had a similar incident last week.
Authorities have not said if the attacks were linked.
An investigation continues.
This is a story in progress. More information will be available and will be updated on MLive.