At least three people died, and scores were injured after a snow squall caused a massive accident at Pennsylvania interstate highway that saw cars being piled-up.

Watch: 3 dead, scores injured in deadly car pile-up in snow-bound Pennsylvania highway

Although accidents are common at snowy highways but slowly major pile-ups of crashed vehicles also seem to have been becoming a norm in the bad weather in the US.

On Christmas, 50 vehicles pile-up in major crash at snowy US stretch, say reports

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Watch: 3 dead, scores injured in deadly car pile-up in snow-bound Pennsylvania highway

On Christmas, 50 vehicles pile-up in major crash at snowy US stretch, say reports