This is the first footage from inside a nightclub in Turkey where at least one gunman opened fire tonight, killing at least 39 people and wounding 69.
The CCTV allegedly shows an attacker prowling around the famous Reina club in Istanbul just moments after they opened fire.
Up to two attackers are believed to have raced into the venue wearing Santa outfits, according to reports.
Turkish journalist Ürün Dirier has tweeted what is reportedly CCTV from inside the club.
A man wearing a white jacket and white bobble hat is seen making his way across the nightclub floor surrounded by debris.