Two of the three people who fell sick during a concert in Istanbul's Şişli district have died, and the cause has now been confirmed. Istanbul Governor Davut Gül appeared before the press to explain what happened and to lay out the official account of the incident. According to the governor, the deaths were drug-related, which changes the direction of the investigation. Emergency teams had responded when three concertgoers suddenly collapsed, but medical help could not save two of them. The third person who fell ill survived, and officials have not given a detailed picture of that case. The confirmation has put scrutiny on how substances got inside the venue and who supplied them. Authorities are expected to release more findings as the investigation moves forward.