Orange County high school students among 4 dead in Santa Ana crash

SANTA ANA, Calif. - Four people were killed, and two people were taken to the hospital following a single-vehicle crash in Santa Ana over the weekend.

Officials said four of the victims were students within the Santa Ana Unified School District. 

What we know:

Authorities said the crash happened Saturday, April 5, around 11:25 p.m. on Segerstrom Avenue, between Raitt and Greenville streets, near Carl Thornton Park.

A preliminary investigation revealed the vehicle was speeding westbound when it collided with a tree.

Four people were pronounced dead at the scene, while two others were transported to the hospital. As of Monday night, investigators said one person remains in critical condition and another in stable condition.

Four of the five victims were high school students, authorities said. The fifth victim was 20-years-old. 

A GoFundMe account identified the victims as Arely, JT, NV, and Manny. According to the GoFundMe, Arely's sister, Arlene, is now fighting for her life in the hospital. 

FOX 11 spoke to the father of the sisters. He said they received a last minute invite to grab food with friends Saturday night. 

Arlene sustained a broken jaw, a fractured neck, and a leg injury.

What we don't know:

The official cause of the crash has not been released. Officials are investigating if drugs or alcohol were involved.