WICHITA, Kan. (KAKE) - A 26-year-old man has been charged after police say he struck and killed two people who were changing a flat tire on a north Wichita highway interchange.

Travis Mock appeared in court on Wednesday and was charged with two counts of involuntary manslaughter while under the influence of drugs or alcohol. Bond has been set at $250,000 and his next court appearance is at 10:45 a.m. on Nov. 28.

The incident happened at around 6:45 p.m. Nov. 10 on the ramp from northbound I-135 to eastbound K-96. The patrol's online crash log states 20-year-old Christian Evans and 18-year-old Emily Stein were changing a driver side tire on a Chevy Trailblazer when Mock's Dodge pickup left the roadway and hit them.

Evans, of Elk City, and Stein, of Wichita, died at the scene. 

The families of Christian and Emily have started GoFundMe campaigns to help with funeral expenses. If you would like to help by donating you can visit Christians GoFundMe here and Emily's here.