Guggenheim Elementary School was in lockdown Wednesday morning, after a parent spotted two men on school property who did not seem to belong on the premises.
One resident told Patch that the lockdown lasted about 30 minutes, but was over by about 9 a.m.
"A parent reported suspicious behavior from two men and they were caught trespassing on the fields at Guggenheim," said School Superintendent Dr. Kathleen Mooney.
"The practice lockdown drills really paid off as everyone knew exactly what to do and remained calm," she said. "Our new security aide as well as the Sands Point and Port Washington Police responded immediately."
It is unclear why the men were on the property at this time. The men were not arrested, but given a citation for trespassing.