Howard County police said the two 19-year-old women who died in a train derailment early Tuesday did so from compressional asphyxia, or death by the lack of oxygen.
The death has been ruled accidental, police said in a release sent out Thursday.
A did so after passing a few feet behind the two young women who were sitting on the edge of a bridge over Main Street, police said.
Those two women, Elizabeth Conway Nass and Rose Mayr, both 19, of Ellicott City, died in the incident after they were "buried under the coal as it dumped from the train cars," Howard County police said.
Police said investigators located the bodies of teens “seated on the edge of a bridge over Main Street.”
Safety officials said in a release the women were “sitting on the ledge facing east towards Baltimore County with their backs to the side of the train as it passed a few feet behind them.”
“For an unknown reason, the train derailed, causing open cars filled with coal to tip over,” according to the release.
Funeral services have been scheduled for the two women killed.
Two viewing services are scheduled Friday, Aug. 24 for at ; one from 3 - 5 p.m. and one from 7 - 9 p.m.
Mayr's funeral will be held at on Sat., Aug. 25 at 11 a.m.
A visitation is scheduled for Thursday, Aug. 23 from 5 - 8 p.m. at . A memorial mass will be held at Ressurection on Friday, Aug. 24 at 11 a.m.
Read more about the train derailment and victims: