Former UFC star Dustin Poirier spent part of his Father’s Day in custody after he was arrested on a public drunkenness charge in Georgia on Sunday evening.

According to TMZ, Poirier, 37, was booked at 6:38pm before being released shortly after 10pm. The circumstances leading up to the incident remain unclear. 

He is said to have made his initial court appearance on Monday morning.

Public drunkenness is a misdemeanor offense in Georgia that can carry up to one year in jail and/or a $1000 fine if a conviction follows. 

The arrest came on the same day Poirier reposted a Father's Day tribute shared by his wife on Instagram, which showed him smiling alongside his two children. 

Shortly after news of his arrest broke, Poirier returned to social media to share a message with fans. 'Love you all. I'm working on myself,' he wrote on Instagram. 

Poirier, a former UFC Interim Lightweight champion, is widely regarded as one of the finest fighters of his generation at 155lbs. 

During his career he defeated Conor McGregor twice in three bouts, as well as Michael Chandler, Max Holloway, Eddie Alvarez and Justin Gaethje, among others.

He retired last year following his final fight at UFC 318.

Just a few weeks ago, prior to UFC Freedom 250 hosted at the White House, Poirier was asked about how he was coping since retiring from the fight game. 

'Thanks for asking. I’m trying to navigate it bro. I'm good. Some days I’m great, some days I’m not so good. It's up and down honestly,' he told Full Send MMA.

'If I’m not working towards something or trying to better my family, I’m a danger to myself'.

Poirier’s representative was contacted for comment.