In a troubling incident in Wisconsin, a woman who recently took up residence in the state is facing serious allegations after a hit-and-run that left two children injured.

Zuyelmar Barrios Alvarez, aged 26, is currently held in the Waukesha County Jail. She faces charges of operating a vehicle without a valid license and committing a hit-and-run resulting in severe bodily harm. According to a press release from the Waukesha County Sheriff’s Office, the incident took place on a Saturday when emergency calls reported an 11-year-old boy and an 8-year-old girl had been “struck” by a vehicle while they were riding a minibike.

Barrios Alvarez is alleged to have fled the scene initially but returned shortly afterwards. The police have stated that both children were transported to the hospital; the boy is in critical yet stable condition, while the girl sustained only minor injuries.

Further details, as disclosed in a criminal complaint accessed by WITI, a local Fox network affiliate, reveal the boy’s severe condition. He was unable to breathe independently and suffered a grave head injury, alongside two broken legs and a severed fingertip.

According to a criminal complaint obtained by local Fox affiliate WITI, the boy “was not able to breathe on his own” and suffered a “serious head injury.” He also reportedly had two broken legs and a severed fingertip.

Barrios Alvarez was at the scene when sheriff’s deputies arrived. According to the complaint, she told police that she approached the intersection at around “15-20 miles per hour and did not see any other vehicle.” She told police that when she saw the minibike enter the intersection, she tried to stop and swerve around it, but was unable to avoid colliding with it.

The complaint stated that Barrios Alvarez told police that she “immediately stopped,” but a witness was able to provide video footage of the alleged collision. According to the complaint, the video showed Barrios Alvarez’s car “drive away from the scene for approximately two minutes and 10 seconds before returning to the scene and being stopped by neighbors who exited their homes to assist with the injured children.”

By the time Barrios Alvarez returned, someone else had already called 911.

Police said that Barrios Alvarez cooperated with them at the scene and was able to provide a driver’s license and proof of insurance. However, her license was from Illinois, where she had previously lived before moving to Wisconsin. Since her residence was in Wisconsin, her license was invalid.

Local ABC affiliate WISN was in the courtroom for Barrios Alvarez’s appearance on Monday, when her bail was set at $50,000. Prosecutors said in court that cash bail was “warranted given the defendant hit these children and then drove away, and had to be flagged down by neighbors to stop and render aid.”

Barrios Alvarez remains in custody on charges of knowingly operating a vehicle without a valid license and hit and run causing great bodily harm. Her next court date is scheduled for Oct. 28.