Daily Telegraph football corespondent Henry Winter confirmed the news on Twitter:
Wenger on Bendtner's alleged antics: "Nobody gave him any permission to go to Copenhagen. He will be fined for that". #afc— Henry Winter (@henrywinter) March 14, 2014
Dominic Fifield of The Guardian wrote that the Danish international had returned to Copenhagen and was accused of threatening a taxi driver whilst drunk, on the same night that his Arsenal team-mates were in Bavaria, being eliminated from the Champions League by Bayern Munich.
Fifield reported that the 47-year-old taxi driver had told BT:
They were pretty drunk. I got out of the car to put the bike stand on the back of the cab, and Bendtner and two of the others climbed into the back seat. When I sat back down I saw that the taxi radio had been kicked loose and was dangling down.
They'd also taken some of my personal belongings that had been lying between the seats and, when I asked to have them back, Bendtner completely freaked out.
Bendtner has been the source of controversy over the whole of his Arsenal career, and it seems Wenger is dealing with him swiftly on this occasion.
The Mirror's John Cross tweeted:
Never known Arsene Wenger give one of his own players such a public dressing down as he has given Bendtner. Story on @MirrorFootball soon— John Cross (@johncrossmirror) March 14, 2014
The maligned player had previously claimed he has been portrayed poorly and "made into a psychopath," per Sam Cunningham of The Mail Online.
Bendtner had also previously spoken on camera about his image and the lies spoken about him:
The promise that Bendtner showed in his early days has never materialised, and his desire to leave the club will undoubtedly be matched by that of Wenger and Arsenal.
With the Gunners' sole credible striking option being Olivier Giroud, the club need to invest in this area and refresh their options. Arsenal's lack of goals this season at vital times, along with their poor squad depth, could cost them dearly.
Is Nicklas Bendtner a negative influence at Arsenal?
Bendtner's negative influence grows, and as the team challenge for their first Premier League title in a decade, they do not need to deal with the off-field headlines caused by his antics.
Selling the Dane looks like an inevitability rather than just a possible outcome at this stage. His place in the squad can then go to someone capable of impacting on the first team.
Bendtner would be better suited to a smaller club where the pressure and expectations are not as intense, but his time at the top level of European competition appears to have come to an end.