'Shadow' on seabed believed to be plane

Indonesia's search chief says a plane has spotted a "shadow" on the seabed which is believed to be the missing AirAsia jet.

"God blessed us today," National Search and Rescue Agency chief Bambang Soelistyo told a press conference.

"At 12.50 the air force Hercules found an object described as a shadow at the bottom of the sea in the form of a plane," he said.