About 1.15am on Monday, October 28, 2019, emergency services were called to a home in the Nambucca Valley, following reports a three-month old girl was found unresponsive in her bassinet.

The girl was treated by members of the Rural Fire Service and NSW Ambulance paramedics before being taken to Coffs Harbour Health Campus for further treatment. She was then airlifted to the Children's Hospital, Westmead, where she died the following day, Tuesday, October 29, 2019.

The matter was referred to the State Crime Command's Child Abuse and Sex Crimes Squad which established Strike Force Tritton to investigate the circumstances surrounding the girl's death.

Following extensive inquiries, detectives attended a residence in Nambucca Heads and arrested a 34-year-old man about 7.15am on November 17, 2020.

He was taken to Coffs Harbour Police Station where he was charged with manslaughter.

The man was refused bail to appear at Coffs Harbour Local Court.

Investigations under Strike Force Tritton continue.

The Child Abuse and Sex Crimes Squad is comprised of detectives who are specially trained to investigate matters against children and adults, including sexual assault, serious physical abuse, and extreme cases of neglect.

Anyone with concerns about suspected child abuse or exploitation should call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page nsw.crimestoppers.com.au.

While you're with us, you can now receive updates straight to your inbox from the Port Macquarie News. To make sure you're up to date with all the news, sign up here. If you would like to support our journalists you can subscribe here.