Twin sisters, 97, died after both fell outside a home in Barrington on a cold night in what police say appears to be a bad accident, reports say.
Police believe the women died of hypothermia. The three sisters then went to Haley's home.
"On behalf of the men and women of the Barrington Police Department, our deepest sympathies and condolences are extended to the Haley and Williams families during their tragic loss", Chief John LaCross said in a news release quoted by CBS Providence, Rhode Island affiliate WRPI-TV.
The younger sister was not with her older siblings at the time.
Police say the cause of death has not been determined but the extreme cold temperatures may have been a factor. A neighbor found them Saturday morning.
Police have said it appears Williams fell in the driveway, and Haley fell as she tried to go call for help. As the night wore on, temperatures dipped to 16 degrees (minus 9 degrees Celsius).
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Two sisters from Rhode Island died Saturday after the two fell outside and could not get up overnight.
Haley, of Barrington, was subsequently found in the garage. The Providence Journal reported that Haley lived at 21 Opechee Drive, Barrington, and Williams lived in East Providence.
It's highly improbable to find out which one of them fell first or if one of the women fell while trying to help the other one.
They were rushed to the hospital in critical condition and later died.
Around 8:30 p.m. on Friday the twins left a dinner out with their 89-year-old sister, who also lives in Barrington, police said.