Authorities are looking for a man who struck and killed three girls in a residential area of Santa Ana while speeding on Halloween.

The AP reports the 13-years-old girls, two of whom were twins, had the right of way at a crosswalk near an elementary school in Santa Ana about 6:45 p.m. PDT when they were hit by a speeding SUV with two men inside.

According to Orange County fire Captain Steve Concialdi, two of the girls were declared dead immediately. The third died while being prepared to be taken to the hospital.

CNN reports one witness followed the vehicle for a short period of time, eventually leading police to where it was abandoned. The suspects allegedly fled on foot.

It is "very sad," Captain Steve Concialdi told the AP, "when millions of children, teenagers and adults are out trick-or-treating on a wonderful evening to insert tragedy like this."

[image via AP]