Two adults and two young girls were killed in an overnight house fire on Saturday in Ohio.
Multiple media reports say the fire broke out about 1:30 a.m. when a caller reported people were trapped inside the Akron house.
A city spokeswoman said the adults were a man and woman and the two girls were around 7 or 8 years old.
Cleveland Cavaliers forward LeBron James announced on Twitter that the girls who died were members of his foundation's educational program.
"Unbelievably saddened to hear the news. My heart hurts…Our family lost two bright, bright stars," James said.
Counselors at the Akron city schools, where the children attended, will be available at their schools next week.
The cause of the fire remains under investigation.
The Associated Press contributed to this report.