Mesut Ozil was cleared to fly to Berlin by Arsenal, according to Germany coach Joachim Low, amid reports the midfielder was seen celebrating in a club in the German capital on Saturday.
Ozil, 26, was allegedly pictured in a Berlin club on Saturday night just hours after missing Arsenal's 2-1 Premier League victory at Newcastle.
English media reported that while the Germany international had permission to travel from Arsenal, the club want to speak with him once he returns from national team duty next week. According to the Daily Telegraph, though, there have not been any suggestions that he is to face disciplinary action.
Low confirmed on Tuesday that the Germany international was omitted from the Arsenal squad for the Newcastle clash due to suffering from a cold, while he was allowed to fly to Berlin after the game.
"It's anyone's guess whether he was partying or not," Low told a news conference ahead of Wednesday's friendly against Australia.
"He has told me that he was in Berlin. I spoke to him and he said that he was weakened by a cold during last week and so Arsene Wenger and Ozil together took the decision to not play him at the weekend. After the match, he was allowed to fly to Berlin."
Low also explained his decision to select Lukas Podolski in his latest squad, despite the forward's current struggles during his loan spell at Inter Milan.
Podolski, who joined Inter from Arsenal in Janaury, has still yet to find the back of the net for the Serie A club.
"I saw his match against Cesena in the stadium and then spoke to Lukas the following day," Low said. "The match [a 1-1 draw in which Podolski set up a goal on March 15] was revived when he came on at half time. He is overall in better physical shape, but of course he has had initial difficulties in Italy."
Low added: "Lukas has always been there for us in the last 11 years. He gave it his all for the team. He played a load of games [121], and scored many goals [47]. And he still has a lot of quality -- age has not taken its toll."
Podolski's loan stint at Inter finishes at the end of the season and it looks likely that he will return to Arsenal in the summer.
However, it is unclear whether he will stay at the Emirates Stadium for the 2015-16 campaign or move on elsewhere.
"He has our full support behind him. This will help him at his club, wherever he will be playing," Low said. "It's important for him that he gets to play regularly and plays well."
Despite giving Podolski his backing, Low said he still has to earn his place if he wants to go to Euro 2016 should Germany qualify.
"There is a lot of competition in his position," he said. "And once we get closer to France it is about getting minutes and having good form."