The firefighter who died in the boat crash at Cleddau waterway yesterday morning has been named as Joshua Gardener.
The 35-year-old from Milford Haven worked with the Mid and West Wales Fire and Rescue Service.
The incident happened between Lawrenny and Neyland.
Dyfed-Powys Police were called to the marina on Tuesday, after reports of a crash involving two fire brigade boats during a training exercise.
One other firefighter had minor injuries from the incident.
Police said the investigation into the circumstances surrounding the death is continuing.