Rio 2016 Olympic rugby sevens gold medallist Masivesi Dakuwaqa has left Biarritz after biting a teammate during a night out last month, the second-tier club said on Monday.
On 31January, Dakuwaqa was questioned by police after scrumhalf Pierre Pages was hospitalised with injuries to his cheek.
"Biarritz announce the immediate termination of Masivesi Dakuwaqa's contract," they said.
"Following an international investigation by the club, the allegations against Masivesi Dakuwaqa have made it impossible for him to continue his commitment with the club.
"By mutual consent it was decided to end his association with Biarritz," they added.
A legal investigation has been opened by local authorities following the incident described as "serious" by the club.
Back-rower Dakuwaqa, 30, joined Biarritz this season after spells with other French outfits in Toulon and Montpellier.
After winning gold in 2016, Fijian Dakuwaqa made his only 15-a-side international appearance in November 2021.