triggering a full emergency response at the sydney, australia, airport. roads closed as the 787 dreamliner, which was on a flight from los angeles, approached the airport, after -- according to one australian news outlet -- the pilot called in a mayday because of low fuel. >> united 839, sydney, copy m mayday, 16 right. you can expect the ils approach. >> expect 16 right, copy mayday, united 839. >> reporter: the emergency response on the ground, as jets were told to expect delays in the air. >> you're going to be following the mayday traffic in, so, i just need to leave a bit of a gap. >> reporter: the united jet with 194 onboard did land safely. an australian official says tonight, it was low fuel that forced that mayday call. david? >> all right, david kerley, thank you. when we come back, news on that manhunt right now. where the suspect might have been spotted. and did you get a text from the president today? the president today?