CHICAGO (CBS) — A string of tragedies in the Chicago area over the past year prompted a safety advocacy group to look at the number of children killed or injured by falling televisions.

Since October of last year, four Chicago-area children died after televisions fell and crushed them.

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Kate Carr with Safe Kids Worldwide says her organization decided to look at the numbers for the past decade.

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“Injuries to kids were on the increase, and we had seen a 31 percent increase over the last 10 years in TV tip-over injuries,” Carr said. “Even more shocking, on average, every three weeks a child was dying from a television tipping over.”

If you’re buying a new TV for the holidays, even one of the lighter flat-screen models, Carr says it’s critical you mount it properly on the wall or secure it with safety straps.

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