UPDATE: Police in Ridgefield, Conn., have determined a local school safe after checking out a report of a suspicious and possibly armed man.
Buses have begun bringing students to Branchville School after police declared the school safe.
“After an extensive police search, no dangerous activity was discovered,” school officials said.
The school was locked down after a caller reported seeing a man with what looked like a rifle walking along a road. Students were to be diverted to another school and all local schools were locked down.
There are now unconfirmed reports that the man turned out to be a worker at a store in Branchville, on his way to his job with an umbrella over his shoulder, according to the Ridgefield Press.
Authorities, including state police and K-9 units, scoured the Branchville train station for any sign of the man, Det. Steve Papstein of the Ridgefield Police Department told FoxNews.com.
Ridgefield is approximately 19 miles from Newtown, where 20 children and six adults were killed Friday when a gunman opened fire at Sandy Hook elementary school.
FoxNews.com's Cristina Corbin contributed to this report.