While revellers celebrated the turn of another new year, a massacre in a nightclub in Turkey left at least 39 people dead and 69 wounded.
Pictures and video show armoured vehicles surrounding the venue after the gunmen entered the building and started shooting at around 1.20am local time.
In the midst of the chaos, chilling footage of one of the gunmen has been released to Twitter.
Footage near the İstanbul nightclub, where gunfire was reported. Turkish TV says there are injured people pic.twitter.com/fhst6L7kZ0
— Ragıp Soylu (@ragipsoylu) December 31, 2016
It is estimated around 800 people were in the popular Reina nightclub at the time of the attack.
This new footage from one of the nightclub’s CCTV cameras shows a man dressed head-to-toe in white prowling the scene.
He makes his way through the debris and destruction cautiously, still brandishing his weapon.
Reina'daki silahlı saldırganlardan ilk görüntüler. Yaralı sayısı 50 deniyor. pic.twitter.com/XWU2Pswnto
— Ürün Dirier (@DirierUrun) December 31, 2016
According to reports in the Mirror, up to two attackers are believed to have raced into the venue wearing Santa outfits.
At least 15 foreign nationals have been confirmed dead and the Turkish interior minister has announced the gunman is still on loose despite earlier reports stating the attacker had been killed.
Security services have said the operation is still ongoing. More to follow.