PERRY HALL, Md. (WJZ) — Hazmat crews are on the scene of a suspicious package in Perry Hall.
Baltimore County fire officials got the call just before 4 p.m. Thursday.READ MORE: Maryland Football Team Wraps Up Nonconference Slate Against Kent State
A package containing an unknown substance was found in a mailbox on Perry Hall Boulevard.READ MORE: Alejandro Villanueva Experiencing Ups And Downs After Joining Ravens
Authorities say it was delivered by the United States Postal Service.
A similar incident happened about a month ago in the same area.MORE NEWS: U.S. Customs Officers Warn Against Bringing Marijuana To BWI Airport
Residents are being evacuated from the building as a precaution.