A local school's Internet outage is the result of a cyberattack, according to Tyngsborough school officials. The outages have affected Tyngsborough High School and Tyngsborough Middle School.The district’s IT team and cybersecurity provider determined the outages were caused by a distributed denial of services cyberattack, apparently from a device being brought into the building each morning, according to Superintendent Michael Flanagan.“We are frustrated and disappointed that this outage has disrupted what has been a very successful and positive start to our school year here in Tyngsborough,” Flanagan said. The school district said it is working with Tyngsborough police, town administration and NorthEast Technology, a Danvers IT solutions company, to identify and remediate the source of the outage. It will also investigate whether the interruption was intentional or caused by a compromised device without the knowledge of its owner."While we are confident that we will soon rectify this situation, I am upset for the difficulty and disruption this has caused our students, families, and staff," Flanagan said.High school and middle school students and teachers worked remotely on Friday. Monday is a school holiday, and the district is hopeful that in-school learning can resume on Tuesday. Tyngsborough Elementary School was not affected.