MUSKOGEE, Okla. (NewsNation Now) — A 25-year-old Oklahoma man remained in custody Wednesday on first-degree murder complaints for the killings of his brother and five young children, police said.

Police in Muskogee said they don’t yet know why Jarron Deajon Pridgeon fatally shot Javarion Lee, 24, or the children, the oldest of whom was 9. The children’s mother, Brittany Anderson, was also wounded in the shootings early Tuesday and was hospitalized in Tulsa.

Police identified the slain children as Jalaiya Pridgeon, 1; Jaidus Pridgeon, 3; Harmony Anderson, 5; Neveah Pridgeon, 6; and Que’dynce Anderson, 9.

Jail records do not list an attorney who could speak on Pridgeon’s behalf.

Pridgeon and the victims lived in the home where the shootings occurred, Muskogee police said. Neighbors told the Muskogee Phoenix that they had only recently moved to the home but that the children were often outside playing.

NewsNation affiliate KFOR reported that Pridgeon was the father of three of the slain children.

“They were great kids,” Raven Anderson, who is an aunt to the children, told KFOR. “If anyone had known them, they would’ve loved them.”

Muskogee is a city of just under 40,000 people about 45 miles southeast of Tulsa.

The Associated Press and NewsNation affiliate KFOR contributed to this report.