Bail has been set at $350,000 for a Chicago mother charged in the deaths of her 1-year-old twin daughters.
Cook County prosecutors have charged 21-year-old Regina Lofton with child endangerment.
She appeared in bond court Saturday. It wasn't immediately clear who Lofton is being represented by.
The Cook County Medical Examiner's office says her daughters, Kimora and Kamari Roberson, died of hyperthermia, environmental exposure and failure to thrive due to maternal neglect.
Prosecutors say the conditions inside Lofton's home were "deplorable."
They say the home's windows were covered with towels, and a window air conditioning unit wasn't in use.
The floor where the girls were found unresponsive Thursday was allegedly covered with dog waste.The mother of twin 1-year-old girls who died Thursday has been charged with negligence.
Police Supt. Jody Weis said the girls' deaths were avoidable.
"Quite simply, this did not need to happen," he said.
He recommended that during times of severe heat, parents pay attention to their children.
On Thursday evening, neighbors of the home near W. 106th Street and S. Wentworth Avenue said they heard Lofton run out of the house yelling "my babies are dead" just as paramedics were arriving.
Calumet Area detectives said the girls had no apparent signs of trauma, and paramedics didn’t see anything obvious that led to their deaths.
"They were fine," an aunt, Cynthia Hike, said Thursday night of her visit with the girls earlier in the day. "I got a call and they said, 'They were gone. The babies were dead.' And I came and when I came I asked what happened. She [Lofton] said she went to feed them and when she came back -- she went to feed them and they were just blank faces starting at her."