A combination photo shows two men whom police said were travelling on stolen passports onboard the missing Malaysia Airlines MH370 plane, taken before their departure at Kuala Lumpur International Airport in this March 11, 2014 handout courtesy of the Malaysian Police. Malaysia's Police Chief, Inspector General Khalid Abu Bakar told a news conference, that one of the men (L) was identified as a 19-year-old Iranian Pouria Nour Mohammad Mehrdad while the identity of the other was being investigated. [Photo/Agencies]

Chinese joint working group arrives in Malaysia