A woman allegedly attacked an expectant mother with a metal pipe.

Fifty-seven-year-old Katherine Nick is charged with aggravated assault and assault of an unborn child.

On Sunday, officers learned Nick allegedly pulled the victim to the ground by her hair before hitting the victim's head and arm with a metal pipe.

Nick allegedly told police the victim threw a big rock at her car and threatened her with a machete.

She also allegedly denied knowing the victim was six months pregnant.