PORTLAND, Ore. - A woman who was defending another transit rider from harassment was attacked and robbed by a group of teens Monday evening, according to police who are still looking for one suspect in the case.

Police say the victim, a 28-year-old woman and single mother, was riding the north Portland MAX line for the first time at about 6:45 p.m. when she saw a group of teens verbally harassing an older rider.

When the woman moved to intervene, police say the group turned on her, beat her up and stole her purse.

When the train stopped, some of the suspects left the train but others continued to attack the woman.

According to a press release by Portland police, North Precinct officers arrested four juveniles, a 14-year-old male, a 15-year-old male, 15-year-old Angela Dow and 15-year-old Ti'yana Clay on one count each of robbery in the second degree, assault in the third degree and intimidation in the first degree.

Charges against the 15-year old male were dropped on Thursday. Police also said that Dow and Clay will be prosecuted as adults, which is why KATU is naming them.

Investigators are still looking for one suspect, another teen, who was seen on security video running from the station with the victim's purse.



He is described as a 14-16 year old black male. He was wearing light-colored clothing, is approximately 5 foot 9 inches tall and has a thin build.

The victim, who asked not to be identified, suffered a small cut to her face but later went to the hospital after the incident complaining of severe head pain.

Her condition has not been released.

The brother of the victim told KATU News that no one on the train came to the assistance of his sister. He said that if others had joined his sister's side, they could have faced down the group of teens.

"It's the saddest thing," Jordan Walbridge said, "when you stand up for someone and in return, nothing."

Walbridge said he would like to see more security on the trains, especially with ridership increasing due to gas prices.

He also said that it was probably his sister's first and last time riding the light rail system.