CHARLESTOWN (CBS) — A nine-year-old boy remains in critical condition after he was hit by a baseball Sunday afternoon.

Investigators say, the child, who was pitching, was struck in the chest by a line drive and knocked unconscious.

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CPR and defibrillator helped to restore vital signs aand he was then taken to Mass General Hospital, according to officials.

The incident occurred during a pickup game at the Ryan playground baseball field in Charlestown.

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“A fire crew and a Boston EMS ambulance were here in just a couple of minutes, started CPR, employed a defibrillator,” explained Deputy Supt. Edmund Hassan. “The paramedics were a few minutes behind, and they continued care using medications and advanced life support measures. We did get vital signs back here in the field and then transported to [the boy] to Mass General Hospital.”

Police could also be seen marking evidence at the scene.

WBZ NewsRadio 1030’s Karyn Regal reports

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