By Chelsea Karnash

SOUDERTON, Pa. (CBS) — Several schools were put on lockdown or shelter in place after multiple shootings were reported in Montgomery County.

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Around 8:30 a.m., the Souderton School District announced it would be operating under a “shelter in place” order.

According to officials, schools were operating on standby with limited visitors allowed in and out.

Souderton students and parents were reportedly sent an email on Monday morning notifying them of the shelter in place. The email read in part:

Due to police activity in Souderton and Harleysville, our schools have been placed in “Shelter in Place” as of 8:45 a.m. this morning. All students are safe and are secured in their classrooms. Visitors will not be allowed in the schools until further notice. More information will be provided to parents as soon as possible.

That lockdown was lifted around 11 a.m.

Around 10:30 a.m., the Pennridge School District also announced the Penn North MS, Deibler and Sellersville Elementary Schools would be on ‘modified lockdown.’

And the nearby North Penn School District posted a message on its website on Monday morning:

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This morning, 12/15/14, police responded to a shooting that occurred in the borough of Lansdale. The North Pen School District has been in contact with law enforcement and we have been advised that a lock out at any of our buildings is NOT necessary. We will continue to monitor the situation throughout the day.

The orders came after multiple shootings — with reported fatalities — happened nearby. One was at 150 Main Street in Lower Salford/Harleysville, and another was reported at Penn Avenue and Highland Avenue in Souderton.

Earlier Monday morning, police also responded to a shooting inside a Lansdale home.

Police initially believed the suspect was inside the home in Souderton and were working on negotiations. A fourth scene was also being looked into in Pennsburg.

Around 2 p.m. on Monday, police confirmed they were searching for 35-year-old Bradley William Stone, who is wanted for allegedly murdering six people and wounding three others. Stone is described as 5’10”, 195 pounds, with red/auburn beard and mustache with closely cropped hair. He is known to use a cane or walker and may be wearing military fatigues in either sand or green color.

Stone remained on the loose as of 2:40 p.m.

(credit: Montgomery County District Attorney)

(credit: Montgomery County District Attorney)

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