MADRID (AP) — HBO in Spain has aired, apparently by mistake, the sixth episode of Games of Thrones' seventh season a week ahead of schedule.

The episode was available to Spanish subscribers early Tuesday for about an hour before being removed. The 71-minute episode is due to be officially available Aug. 21.

News of the incident was immediately reported on social media and copies of the episode were reportedly available online later.

Comment from the company's office in Spain wasn't immediately available Wednesday.

HBO has been the victim of hacking in recent weeks in the United States. In India, episode four of Game of Thrones was recently leaked, leading to the arrest of four suspects.