The search for a second-grade student who disappeared last week after he arrived at his Portland, Oregon elementary school intensified Monday
Kyron Horman, 7, did not return home on Friday from Skyline Elementary School, police said.
According to investigators, the boy's stepmother said she last saw Kyron Friday morning while he was walking down the hallway towards his classroom.
In a statement, the Multhnomah County sheriff's office reported that no one at the school saw him after 8:45 a.m. Friday and that Kyron never made it to his classroom.
Searches in the school area were conducted Friday and over the weekend by several agencies, including the Portland Police Bureau, Gresham Police Department, Fairview Police Department, Oregon State Patrol, and the FBI.
Authorities have also utilized Portland Police Bureau's air unit in an attempt to locate the child.
"My heart, and the hearts of everyone who is a part of Portland Public Schools, goes out to Kyron Horman and his family," said Portland Schools Superintendent Carole Smith in a statement.
"We are all wishing for Kyron's safe return as quickly as possible and we are grateful for the efforts of all the law enforcement agencies who have worked so tirelessly over the past 48 hours to determine the cause of Kyron's disappearance, locate him and return him safely home.
"The reported disappearance of a student from one of our schools is unprecedented and deeply troubling. Portland Public Schools is doing everything we can to assist the authorities in their effort to find Kyron."
Anyone with information on Kyron Horman's whereabouts is asked to call the Mutnomah County Sheriff's Office at 503-261-2847.