Authorities in northern Colorado are investigating whether shootings at a health care center and elementary school over the weekend are related, but say there is no indication they are connected to four shootings that have left two people dead.
No one was hurt Sunday when someone fired at the Banner Health Center building in Fort Collins, north of Denver, police said Thursday. That same day, someone also shot at an unoccupied part of the Cottonwood Plains Elementary School in Fort Collins.
Meanwhile, the four separate shootings that claimed two lives in the Larimer County area still remain unsolved, officials added.
Northern Colorado Shooting Task Force spokesman David Moore said Thursday that the FBI is offering a $50,000 reward in the Colorado cases.
The task force said in a statement that it was monitoring the two new shootings, but "there is no information to indicate they are related to the original four shootings."
The first shooting incident occurred on April 22, when a driver was hit in the neck on Interstate 25, but survived. The following month, a bicyclist was fatally hit on another roadway. Officials said those two shootings are linked.
In June, one person was shot at while riding a motorcycle in the town of Loveland. Minutes later, a pedestrian was killed nearby. Officials have also determined that the those two cases are connected.
Moore said investigators have pored over more than 2,500 leads and interviewed 10 persons of interest who have since been cleared.
More also addressed the recent string of highway shootings along Interstate 10 in Phoenix, but he said those freeway shootings don't appear to be connected to what has happened in Colorado.
"The task force has reached out to investigators in Arizona and they’re monitoring that situation," Moore told reporters.
The potential of a serial sniper firing at drivers has rattled the Phoenix area, and the FBI announced Tuesday it is offering a $50,000 reward for tips leading to an arrest. A 13-year-old was injured by flying glass, but no one has been seriously hurt.