A man who was arrested in connection with the discovery of the body an infant in Co Kerry in 1984 has been released without charge.

The man, aged in his 60s, was released from Listowel Garda Station yesterday after questioning by gardaí.

A woman in her 50s arrested in connection with the same investigation was also released yesterday.

The developments come nearly 40 years after the body of 'Baby John' was found with multiple injuries on White Strand Beach in Cahersiveen on April 14th 1984.

In January 2018, An Garda Síochána announced a review into his death, which would become known as the Kerry Babies case.

An extensive investigation has been ongoing since then, with hundreds of people having been interviewed and over 560 lines of enquiry being followed.

The grave of Baby John in Co Kerry. Picture by Barry Whyte/Newstalk

Renewed appeal

Superintendent Flor Murphy, who has been leading the investigation, has appealed to the public for any information in relation to the death of Baby John to come forward.

"I am again appealing to the public for any information in relation to the death of Baby John in 1984", she said on Thursday.

"Anyone who comes forward will be treated with sensitivity and compassion."

Anyone with information is asked to contact Killarney Garda station on (064)-667-1160 the Garda Confidential Line at 1800-666-111 or any Garda station.

Main image shows White Strand Beach in Cahersiveen, where the body of Baby John was found. Picture by: Barry Whyte/Newstalk