Polygamous women dressed as ninjas break into Utah home

The pair were reportedly targeting a 15-year-old who is due to testify against their shared boyfriend in a sexual assault case

Two polygamous women have been jailed after breaking into a Utah house dressed as ninjas and armed with knives and stun guns.

The women, aged 18 and 22, were reportedly targeting a 15-year-old girl who is due to testify against their shared boyfriend in a sexual assault case.

According to the Guardian, the two women attacked one of the men at the residence in West Jordan, after he attempted to discover what was going on.

Ian Adams, from the West Jordan police department, told the newspaper: "Another adult male joined the fray in defence of the first male victim.

"He was armed with a sword, and using a sword … and with the other male [was] able to subdue the two women until police arrived and took them into custody."

Adams added that the incident took place around 4am on Friday and that the child victim was at home but was not involved in the altercation.

One of the men involved told Fox 13 News: "I went to the bottom of the stairs and saw a couple of ninjas coming down.

"They were all dark grey or black, and they had black rubber gloves on and masks. All I could see was their eyes."

Officer Craig Powell told the broadcaster that he believed the break-in was linked to "the testimony that would be given in court next week".

The two women were taken to Salt Lake County Jail and booked on charges of aggravated assault, aggravated robbery and witness tampering.

No one was harmed in the incident.