BROOKLYN - Six people, including three children, were rushed to the hospital this morning for carbon monoxide poisoning.

Firefighters found the tenants unconscious at 644 Lafayette Ave. in Bed-Stuy at around 5:30 a.m. Officials say they recorded the building's carbon monoxide levels at 500 parts-per-million when it should be at zero.

According to the FDNY, the victims were all able to regain consciousness, but some of the kids may have to undergo further treatment inside a hyperbaric chamber at Brookdale Hospital.

The city's Office of Emergency Management says the incident should serve as a reminder for all Brooklyn residents to check their detectors and change the batteries.