Update: 5:30 p.m Friday Click Here

PEMBROKE, N.H. (CBS) – A woman allegedly zapped a pregnant woman with a stun gun in a case of road rage in New Hampshire earlier this week.

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WBZ-TV’s Karen Anderson talks with police about shocking new details in the case  

Police said 22-year-old Carissa Williams got upset when the other driver, a 28-year-old pregnant woman, was going too slow along a highway in Pembroke.

Williams started throwing items at the pregnant woman’s car.

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At some point, Williams passed the woman, but the two ended up getting off at the same exit. The pregnant woman was on the phone with a 911 dispatcher to report the incident when Williams entered her car and attacked her.

The victim was upset, but will be fine.

Williams, who was tracked down at her home on Wednesday afternoon, was arraigned on Thursday morning and is being held on $100,000 bail.

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Update: 5:30 p.m Friday Click Here