​A group Brighton and Hove Albion players are under fire after appearing to inhale an unspecified substance from balloons in a video of them captured while on holiday during the Premier League winter break.

Shane Duffy, Pascal Gross, Leandro Trossard and Alireza Jahanbakhsh can all be seen with balloons to their mouth while sat around a bar in a ​video clip shared on Twitter.

Alireza Jahanbakhsh

​​A spokesperson for Brighton and Hove Albion said, as ​quoted by the Daily Star“The club is aware of the ​video circulating on social media. This matter is being dealt with internally.”

Many are associating inhaling from balloons with the use of nitrous oxide, which was made illegal in the UK for recreational purposes in 2016 under the Psychoactive Substances Act.

​Brighton aren't the first team to struggle with a potential nitrous oxide issue among players. Several ​Arsenal players came under fire after suspicions rose around their usage of it in 2018, as have England internationals Raheem Sterling and Kyle Walker in the past.

The club will hope to put this recent controversy behind them at the end of the Premier League's inaugural winter break.

Alireza Jahanbakhsh

The Seagulls are on their winter break and will return to action on 22 February when they travel to Bramall Lane to face ​Sheffield United, who currently sit in fifth in the ​Premier League table. Chris Wilder's side have become a force to be reckoned with, taking points off Arsenal, Tottenham Hotspur and Manchester United this season.

They remain without a win in 2020, with their last victory coming at home to ​Bournemouth on 28 December. Graham Potter's side sit 15th in the league table, three points behind rivals Crystal Palace, and a win next week would ensure that they are one step closer to ensuring another term in the top flight.