(NBC News) The Louisiana House of Representatives passed an abortion ban on a 79-23 vote Wednesday that would prohibit women from terminating a pregnancy once a fetal heartbeat has been detected.

Democratic Gov. John Bel Edwards has indicated he will break with his party and sign the ban if it crosses his desk. The Senate already approved the bill with amendments that include language to require an ultrasound and clarified that abortion did not include medically necessary terminations.

The House rejected an amendment Wednesday that would have provided an exception to the bill for women and girls who had been impregnated through rape or incest.

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