Missing MH370: No unidentified planes detected, says Kazakhstan

A US Navy handout image showing crew members on board a P-8A Poseidon assigned to Patrol Squadron 16, man their workstations while assisting in search and rescue operations for Malaysia Airlines flight MH370 on Sunday

ALMATY - Kazakhstan said on Monday it had not detected any "unsanctioned use" of its air space by any planes on March 8, making it unlikely that a missing Malaysia Airlines jetliner could have been diverted along a northern route via Thailand.

Malaysia Airlines Flight MH370, which vanished with 239 people aboard, could hypothetically have reached the Central Asian nation's air space, but it would have been detected there, the Kazakh Civil Aviation Committee said in a statement.

"Even if all on-board equipment is switched off, it is impossible to fly through in a silent mode," said the statement signed by the committee's deputy head Serik Mukhtybayev. "There are also military bodies monitoring the country's air space."

Malaysia Airlines planes had made nine regular flights to and from Europe over Kazakhstan's territory on March 8, Mukhtybayev said.

"Even hypothetically thinking, before reaching Kazakhstan's territory, this plane would have had to fly over other countries along its route, where the flight zone is also closely monitored, so we would have received information from these countries," he added. Suspicions of hijacking or sabotage had hardened further when officials had said that the last radio message from the plane - an informal "all right, good night" - was spoken after the system, known as "ACARS", was shut down.