Mom of 2 who died of hyperthermia arrested in Fla.

The Colorado mother of two boys who died after being left in her vehicle is facing charges including criminally negligent homicide, following allegations that she was having sex in another vehicle while her boys were alone.

Heather Jensen was arrested Wednesday at her mother’s Florida home on suspicion of false reporting, two counts of criminally negligent homicide and two counts of child abuse resulting in death while acting with negligence.

Coroner’s officials have said 2-year-old William Jensen and 4-year-old Tyler Jensen died of hyperthermia, or overheating. William died at the scene Nov. 27. Tyler died later at a hospital.

An arrest warrant affidavit says a man told investigators he and Heather Jensen were having sex in his truck while the boys were in her vehicle.