"We are in the Tophane tram stop, the guard couldn't get the dog out. He asked if anyone was bothered and said 'He's getting off on Kabataş anyways,' we're on our way now," wrote a user named Rihem. Later, the dog was seen transferring onto a ferry at Kabataş.

A user named Ezgi Ece chimed in and revealed that the dog had in fact been spotted on the Anatolian side shortly before, at the Maltepe stop of the Kadıköy-Kartal metro line. 

Another user shared a photo from Aug. 11 where the dog was spotted on the Anatolian metro near Soğanlık, sitting properly among the passengers. 

The dog had apparently also been spotted on the M1 metro line on the European side, spanning all the way from Atatürk Airport to Yenikapı.