Republican presidential frontrunner Donald Trump said Tuesday that the United States should "take out" the family members of terrorists in the effort to fight ISIS.

Asked during a Fox News interview about civilian casualties in the fight against the terror group, Trump replied that terrorists are "using them as shields."

"But we're fighting a very politically correct war," he added. "And the other thing is with the terrorists, you have to take out their families. When you get these terrorists, you have to take out their families. They care about their lives, don't kid yourself. But they say they don't care about their lives. You have to take out their families."

Trump reiterated that he would "knock the hell" out of the terrorist group, which is also referred to as ISIL or Daesh.

A new Quinnipiac poll out Tuesday showed Trump leading the Republican presidential field, beating second-place finisher Marco Rubio by 10 points.

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