FORT LAUDERDALE, Fla. — Marjory Stoneman Douglas High School evacuated one of its buildings and placed the rest of the campus under a lockdown Friday after an envelope containing a “suspicious substance” was received in the front office, officials say.
The school remained under a modified hold as of Friday afternoon, meaning students could leave in a “modified way,” said John Sullivan, a spokesperson for the school district, while they wait for law enforcement to clear the building.
Sullivan said the envelope contained a “suspicious white substance” that was later determined not to be harmful. It was likely mailed to the school since it was received in the front office, Sullivan said.
