DYFED-Powys Police is continuing to investigate the death of Simon Clark at Grove Caravan Park in Pendine on Friday (Sep 28).
Police can confirm that one more arrest has been made overnight in connection with the investigation.
A 52-year-old female has been arrested on suspicion of assisting an offender and is currently in police custody.
The two people arrested on Sunday remain in police custody.
A 40-year-old male arrested on suspicion of murder.
A 46-year-old female arrested on suspicion of assisting an offender.
The 48-year-old man, arrested on Friday on suspicion of murder has been released with no further action at this time.
Officers are continuing to appeal for information from anyone staying at the caravan park, who might have seen or heard anything out of the ordinary between 7.30pm on Thursday, September 27th and 8am on Friday, September 28.
Detective Chief Inspector Paul Jones said: “I would urge anyone within the community who has information that could help officers with the investigation to contact the police as soon as possible. Any piece of information, however small you think it might be, could be critical in piecing together the circumstances which led to Simon’s death.”
Anyone with information is asked to report it by phoning 101. If you are Deaf, hard of hearing or speech impaired text the non-emergency number: 07811 311 908.
Alternatively, contact the independent charity Crimestoppers anonymously by calling 0800 555111, or visiting crimestoppers-uk.org.