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NEWARK, N.J. — A New Jersey bus driver is facing charges after authorities had to use Narcan to revive her after the school bus she was driving, with a dozen children on board, hit a tree.

Newark Public Safety Director Anthony Ambrose says authorities used the opioid overdose antidote because it appeared 57-year-old Lisa Byrd was under the influence of a narcotic.

The special-needs students, who range in ages from 5 to 13, were not injured as the bus appeared to cross a street and bump into the tree during a snowstorm Wednesday.

Ambrose calls the situation “irresponsible and heinous.”

Byrd is charged with child endangerment, driving while impaired and possession of drug paraphernalia. It could not be determined if she has retained a lawyer.