>> Sunday's mass killings in Kazakhstan increasingly believed to be the work of Islamic State. 19 people, including many of the gunmen, killed in a raid on a National Guard base. Now Kazakh Security Services say at least one of the attackers was connected to IS. Writer's correspondent is in Aktobe where the attack took place, and is looking into what we know.
The main bit of evidence we have is the social network account of one of the suspected attackers, Ostem Omarov. Who in recent months, basically between the eighth of April and the fifth of June, posted a video featuring the Islamic State's imagery.>> Omarov is not on the list of attackers still at large.
But there's no word on whether he's dead or in custody. If IS is gaining ground in the region, that would cause real alarm. Mainly Muslim Central Asia is a potentially volatile mix of repressive governments and impoverished populations. In Kazakhstan itself, militants might think they've found a soft target.
>> Well, Kazakhstan is the biggest economy in Central Asia. And it's also a vast country in terms of territory, making it really hard to control in terms of police presence and security presence. Its the second biggest oil exporter in the former Soviet Union, after Russia. So there's lots of infrastructure.
>> Kazakh President Nursultan Nazarbayev declaring Thursday a day of mourning for the attacks. He's ordered security forces to detain or kill those attackers still on the run. Kazakhstan and the world, hoping this attack remains an isolated incident.