Two people have been arrested in the traffic accident that killed two Forest grove sisters on Sunday.
The alleged driver of the vehicle, Cinthya Garcia Cisneros, 18, of Forest Grove, was charged with Two Counts of Failure to Perform Duties of a Driver to Injured Person(s).
An alleged passenger in the vehicle, Mario Echeverria, 18, of Cornelius, was charged with Tampering with Evidence and Hindering Prosecution.
The arrests were announced Tuesday evening.
Earlier in the day, the Multnomah County Medical Examiners Office confirmed the second sister has passed away.
Abigail Robinson, 11, was rushed to Legacy Emanuel Medical Center Sunday night after she and her sister, Anna Dieter-Eckerdt, 6, were hit by a vehicle as they were playing in a pile of leaves outside their home near the intersection of 17th and Main St. in Forest Grove.
Police said Eckerdt died on scene. A spokesperson with the Multnomah County Medical Examiners Office said Robinson passed away around 11:30 a.m. Her body remained at Randall Children's Hospital at Legacy Emanuel Medical Center. Officials said some of her organs are being processed for donation.
On Monday night, hundreds of community members gathered at the Forest Grove Sonrise Church to support the family.
Police said Monday they had seized the vehicle that reportedly hit the two girls. Detectives did not immediately release the names of the driver and passenger. Capt. Mike Herb, a spokesperson for the Forest Grove Police Department, said late Monday investigators are no longer calling the incident a hit and run. Herb would not elaborate on why.
The Washington County District Attorneys Office is assisting with the investigation, sources confirmed.
KOIN News 6 contributed to this story.