A pregnant mother and her two young sons were found dead in an RV near a Kansas motocross track on Sept. 16, according to authorities and a GoFundMe for the family's funeral expenses.

McPherson County Sheriff's Office deputies responded to a report of "three deceased persons in a camper" at the Inman Motocross track in Inman, the sheriff's office said in a Facebook post at the time.

"This tragedy is being investigated by the Sheriff's Office with the assistance of the Inman Police Dept.," the sheriff's office continued.

Loved ones identified the deceased as Felecia Richey – a mother of four, including a baby on the way – and two of her sons, Tysin and Bentley, on social media.

YOUTH PASTOR ALLEGEDLY TRIED TO KILL WIFE, 5 CHILDREN BEFORE SETTING HOME ON FIRE: POLICE

Felecia Richey and her two sons, Tysin and Bentley

Loved ones identified the deceased as Felecia Richey – a mother of four, including a baby on the way – and two of her sons, Tysin and Bentley, on social media. (Facebook)

"What I wouldn’t give to listen to my Tysin’s giggle one more time, to see Bentley making that silly goofy eye roll when he laughed at me, and Felicia with her smile that [lit] up our world," the boys' grandmother wrote in a Facebook post.

CARBON MONOXIDE DEATHS ARE CLIMBING, PUTTING FAMILIES IN PERIL: ‘MY SON IS LUCKY TO BE ALIVE’

Richey's friend said the expectant mother and her sons, who participated in motocross races, died "unexpectedly to carbon monoxide poisoning" in their camper parked near the racetrack.

Felecia Richey (center) and her two sons, Tysin and Bentley

Felecia Richey's friend said the expectant mother and her sons died "unexpectedly to carbon monoxide poisoning." (Facebook)

She and her husband, Jason Richey "were expecting their 4th child," the friend wrote. "Jason (only 26 years old) and 3 year old son Grayson will be navigating an extremely difficult road. We are asking for prayers and donations."

TEXAS CARBON MONOXIDE LEAK HOSPITALIZES 6, INCLUDING 5 CHILDREN

Richey was a photographer with a "BEAUTIFUL smile and contagious laugh,"another friend wrote on Facebook. "She was such an amazing person and mama."

Jason Richey and his wife, Felecia Richey

Felecia and her husband, Jason, "were expecting their 4th child," a friend wrote on Facebook. (Facebook)

CLICK HERE TO GET THE FOX NEWS APP

A GoFundMe titled "Richey Family Tragedy" was created to help Jason Richey with funeral costs for his loved ones.