About 60 children and adults have been evacuated from a school in Owings Mills due to a carbon monoxide leak.

Baltimore County Fire and EMS crews responded at 11:17 a.m. to The Shafer Center, 11500 block of Cronridge Rd., 21117, a school for special needs children. Staff members noticed an unusual smell (probably the result of improper fuel combustion, since CO is odorless) and called BGE, which in turn called 911 after the school's carbon monoxide alarms activated.

BCoFD crews found high levels of CO, a dangerous gas produced by incomplete fuel combustion, and evacuated the building. Children and staff are housed next door at the Maryland Vehicle Emissions Inspection Program station. Shafer Center students and staff will not be allowed back into the building today; the Center is in the process of contacting parents.

One adult has been transported to local hospitals for evaluation of non life-threatening symptoms.

CO levels have dropped following ventilation and other mitigation by firefighters. Observations from Fire personnel indicate a problem with the heating system.

Fire crews began clearing the scene around 1:40 p.m.