A father has been arrested after the deaths of 15-month-old twin girls found in a hot car outside Atlanta, Georgia.
Asa North, 24, of Carrollton, has been charged with two counts of involuntary manslaughter and two counts of reckless conduct.
Someone discovered the twins unresponsive in the back seat of an SUV parked in front of a residential building in Carrollton last night, said police.
"The neighbours heard some screaming - I guess coming from the father - and saw him running around back with the two children," said Captain Chris Dobbs, of Carrollton police.
Officers found people holding the girls in a nearby baby pool, trying to cool the children off, with some using ice packs.
"Actually one of the neighbours got some ice packs out of the freezer and carried it out there," said Captain Dobbs.
The twins were taken to a hospital, where they were pronounced dead.
Police said the mother was in Atlanta at the time.
Carrollton is about 45 miles west of the city.
The deaths of the twins come as prosecutors in another part of Atlanta prepare for the murder trial of Justin Ross Harris, 35.
Harris is accused of intentionally leaving his toddler son to die in a hot SUV for about seven hours on June 18, 2014.
His trial was moved to the coastal Georgia city of Brunswick after a judge agreed with defence lawyers that an impartial jury could not be found in the Atlanta area.
The trial is expected to begin in September.
The girls who died in Carrollton are the 25th and 26th children to die this year in hot vehicles in the US.
This figure is more than double the number who had died by this point in the summer during 2015, said Janette Fennell, president and founder of KidsAndCars.org, a group that tracks such deaths each year.
By this time last year, 12 children had died in hot cars, said Ms Fennell.