>> The moment an Istanbul airport bomber shot an undercover policeman at point blank range on Monday. CCTV footage capturing the attack. Just minutes later, the suspected Islamic State militant and two others detonating bombs that left more than 40 people dead and over 230 injured. Reuters Turkey bureau chief, Nick Tattersall says, the footage confirms how difficult it was to prevent the bombings.
>> Well that footage corroborates what officials have said which is that the gunmen, the bombers, opened fire initially forcing their way into the airport, through the chaos, and then blowing themselves up. The suggestion is that one of the attackers was challenged by a plain clothes police officer, asked for his identity papers, and shot the officer.
And that thereafter the attack unfurled.>> Turkish government officials confirming that the attackers were from Russia, Uzbekistan and Kyrgyzstan. No further details released. Investigators had struggled to identify the men from their limited remains. Turkish police detaining 13 people including three foreigners in raids across Istanbul on Thursday morning.
Counter terrorism teams launching simultaneous raids at 16 locations across the city.>> These are the latest in raids that have gone on around Turkey against suspected Islamic State cells. There were more this morning in the Aegean coastal city of Izmir where another nine suspects were detained. They were thought to have been in contact with Islamic State members in Syria.
>> The attack on Europe's third busiest airport was the deadliest in the series of suicide bombings in Turkey this year. The three bombers opening fire to create panic outside, before two of them got inside the terminal and blew themselves up. A pro government newspaper naming the organizer of the attack as Chechen, Akhmed Zakayev.
He's on a UN sanctions list as a leader in IS, responsible for training Russian-speaking militants.