CBS News’ Don Dahler reports on drowning — the second most common cause of accidental death in children aged 14 and younger — and how to prevent it by knowing what drowning really looks like.

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Potentially record-breaking heat this week has metro area kids flocking to local pools to cool off.

The drowning of a 4-year-old boy in Thornton, Sunday, has the American Red Cross sending a reminder for parents to keep a close eye on their kids at the pool.

“Most cases of drowning occur with kids that are under the age of six due to a lack of parental supervision,” said Wheat Ridge Aquatics Supervisor Barb Kloberdanz.