Interpol has released an image of two Iranians who were travelling with stolen passports on a missing Malaysia Airlines jetliner.
The image showed the two Iranian men boarding a plane at the same time.
Interpol secretary general Ronald K Noble said the two men travelled to Malaysia on their Iranian passports, then apparently switched to the stolen Austrian and Italian documents.
Mr Noble said the recent information about the men made terrorism a less likely cause of the plane’s disappearance, but that did not allay concerns about the ease of travel involving stolen passports.
He identified the men as Pouri Nourmohammadi, 19, and Delavar Seyedmohammaderza, 29.
The 19-year-old is believed to have planned to seek asylum in Germany.
The Malaysia Airlines plane carrying 239 people on board went missing en route from Kuala Lumpur to Beijing. It was last known to be over the sea between Malaysia and Vietnam.
No wreckage has been found despite extensive searches and reports of possible debris in the water.