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COLUMBUS, Ohio -- A gun bill in Ohio that includes a "stand your ground" self-defense proposal has cleared a legislative committee.

The measure approved Tuesday would expand the circumstances under which people could use force to defend themselves without a duty to first retreat.

Under current law, Ohioans need not retreat if they're lawfully in their homes, vehicles or the vehicle of an immediate family member.

Debate over such measures has increased following George Zimmerman's acquittal in the 2012 Florida shooting death of unarmed teen Trayvon Martin.

Opponents say the state's current self-defense laws are sufficient. Backers of the bill say those who feel threatened shouldn't have to retreat to ensure their own safety.

The bill also eases certain rules on carrying concealed weapons. A vote before the full House could come Wednesday.