5 Kids Injured, Including 4-Year-Old with 'Significant Head Trauma', After Being Hit by Van on Field Trip

"While they were crossing the street and using the crosswalk, they were hit," said a family member of 4-year-old Juniper Ammons

Five children were injured in California on Wednesday after they were hit by a truck while crossing a street.

The preschool students were in Pollock Pines just after 10:30 a.m. local time when they were struck by a passing van, according to ABC affiliate KXTV and CBS affiliate KOVR.

"The teachers were taking the children on a field trip down the street to the park. While they were crossing the street and using the crosswalk, they were hit by a van," read a message on a GoFundMe set up on behalf of one of the students, 4-year-old Juniper Ammons.

California Highway Patrol (CHP) said three of the children sustained major injuries as a result of the collision, while two others sustained minor injuries, per KOVR and NBC affiliate KCRA-TV.

The driver of the van, a 21-year-old man, remained at the scene and cooperated with authorities following the crash, according to KXTV and KCRA-TV.

Related: 'Beloved' Georgia Teen with 'Fiery Spirit' Dies After ATV Drives Up Wire and Flips Over

Two of the children who sustained major injuries — a boy and a girl — were transported to UC Davis Medical Center for treatment, per the report.

The third child with major injuries, a boy, was reportedly transported to Sutter Roseville Medical Center. The two other victims, a boy and a girl, were taken to Marshall Medical Center to be treated for their minor injuries.

Pine Top Montessori, the school the children attended, released a statement to families following the crash.

"Our hearts and prayers are with all our families, and we are sending our prayers for their speedy recovery. We remain in close communication with authorities and parents to address the issue," the school said, per KXTV.

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories.

Among the seriously injured is 4-year-old Juniper, KXTV reported

The child sustained “significant head trauma” in the crash and was “placed on a ventilator," aunt Jillian Leach wrote in a message on the GoFundMe page, which has raised over $53,000 in less than 48 hours.

Juniper’s parents, Catie and Trevor, “have been bedside with her since she arrived," Jillian shared. “They are living their worst nightmare right now."

In an interview with KXTV published on Thursday, aunt Allison Warren said Juniper was in stable condition.

“That's all we can ask for right now," Warren told the outlet. “They're monitoring her very, very closely.”

She went on to call the 4-year-old a “ray of sunshine” who “lights up a room.”

“We laugh because we talk about her being such an old soul. She says things that you're like, 'How did that come out of a four-year-old's mouth?’” Warren said, adding that the little girl has “the largest heart ever.”

Related: Texas Teen Found Dead After He and Friend Were Reportedly Ejected From a Boat: 'Our Hearts Are Shattered'

The El Dorado Community Foundation is also collecting donations for the victims of Wednesday’s crash through its Community Resource Fund.

“We know that no amount of money can fix the damage that was done, but we can help to lessen the financial burdens of the families involved,” the foundation said in a note on its website.

Authorities initially said they did not believe that alcohol, drugs or excessive speed were factors in the crash, but were looking into whether distracted driving was at play, according to KCRA-TV.

An investigation into the crash is ongoing. CHP did not immediately respond to PEOPLE’s request for comment.

For more People news, make sure to sign up for our newsletter!

Read the original article on People.