MOORE, Okla. • A second suburban Oklahoma City high school student has died after a group of cross-country runners was struck by a pickup truck that authorities say was driven by a man whose son was killed in a traffic crash over the weekend, a school official said Tuesday.

Sophomore Yuridia Martinez, who had been hospitalized in critical condition since the Monday crash, has since died, Dustin Horstkoetter, director of safety and security at Moore Public Schools, said.

Officials had previously said that senior Rachel Freeman was killed when the truck slammed into members of the school’s cross-country team.

Moore police Sgt. Jeremy Lewis said authorities believe the students were running on the sidewalk when they were struck.

Authorities had previously said they were running along a street outside Moore High School.

Three students remained hospitalized with injuries. Student Kolby Crum was in critical condition at Oklahoma Children’s Hospital, according to spokeswoman April Sandefer.

Max Leroy Townsend, 57, was being held in the Cleveland County jail on charges of first-degree manslaughter and six counts of failure to stop and render aid.

Police suspect alcohol was a factor, according to Lewis.