Passengers walk past a signboard of Malaysia Airlines at Kuala Lumpur International Airport in Sepang, outside Kuala Lumpur, Malaysia, Saturday. Pic: AP.

NEW YORK (AP) — The mystery of the missing Malaysia Airlines jet has become a hot television story, particularly on CNN.

The network was devoting the bulk of its time Friday to the story, tracking various theories about what happened to the Boeing 777 airliner that has been missing since taking off from a Kuala Lumpur airport a week ago.

That’s a direct result of ratings showing a fascination among viewers about the vanished jet. The Nielsen company said the network averaged 588,000 viewers on Thursday, well above its average this year of 320,000.

Anderson Cooper’s prime-time show, which has focused heavily on the mystery, more than doubled its typical viewership the last two nights.