by security forces. one would presume from that that the 110 passengers on board are off and safe. we don't quite know where this originated from. what the motive was. lots of things happen in midair that could be explained simply by erratic behavior. but, of course, people extraordinarily on edge at this point because of what's been happening behind me coinciding precisely with the opening ceremony. >> do we have a sense of the person who actually allegedly made this threat? do we know if they are in custody at this point? what do we know about that individual? >> reporter: i'm only able to presume that given the statement from the transportation official, the turkish transportation ministry this person is in custody because the aircraft is in a safe zone. they have a place waiting set aside where any plane in any condition can be put down. this plane emitted a hijack signal while it was in the air according to multiple reports. that's, of course, where this process began.