This is the Denver7 breaking and developing news blog. Throughout the day, this story will be updated with both minor and large breaking news events that our readers care about. Check back as we continue to update this story.
1:55 p.m.: Arapahoe High School is no longer on a secured perimeter following an anonymous tip, according to a school secretary. The perimeter was lifted just before 1:30 p.m.
12:34 p.m.: Arapahoe High School is on a secured perimeter as deputies investigate an anonymous tip received by officials sometime today. The sheriff's spokesperson told Denver7 they could not discuss the details of the tip.
9:45 a.m. — Cherokee Blake, PIO with Gilpin County Sheriff's Office, said this morning's water main break occurred at 7:45 a.m. Officials believe the break was due to fatigue, she said. All businesses in Central City are shut down.
8:04 a.m. — All residences and businesses in Central City will be affected by an emergency water shut off, according to an alert from Gilpin County. As of now, there is no ETA for when it will be restored.