HOWLAND — The Trumbull County Coroner’s Office has determined that acute carbon monoxide poisoning caused the deaths of a father and his young son found in a Howland residence last month.

Coroner Lawrence D’Amico identified the deceased as 33-year-old Leonard James Roosa and his 8-year-old son, Leonard Lee Roosa. The manner of death for both has been ruled an accident.

The two were discovered Aug. 12 in a home in the 5000 block of Mines Road, which led to an investigation by Howland police and fire. Authorities initially were limited in their comments as the coroner’s office conducted autopsies and further inquiries.

Howland Police Chief Nick Roberts said high carbon monoxide levels prevented immediate entry into the home.

“Firefighters informed us the CO2 levels were too high to enter safely, so we had to wait for them to ventilate the house,” Roberts said after an Aug. 13 township trustees meeting.

He noted there was no evidence of forced entry or foul play.

Fire Chief Raymond Pace confirmed the presence of carbon monoxide in the home but deferred to the coroner’s office for the official cause of death ruling.