(CNN) -- There is no evidence to suggest that the two men who used stolen passports to get aboard Malaysia Airlines Flight 370 had anything to do with its disappearance Saturday as it was flying from Kuala Lumpur to Beijing, an official said Tuesday. 

"The more information we get, the more we're inclined to conclude that it was not a terrorist incident," Interpol Secretary General Ronald Noble told reporters Tuesday at his organization's headquarters in Lyon, France. 

Here's what we know about what happened, how it happened and why. 

WHO ARE THEY? 

The passengers are Delavar Seyed Mohammad Reza, 29, and Pouri Nourmohammadi, 18. 

They entered Malaysia on February 28 using valid Iranian passports. 

CNN obtained an iReport photo of what appears to be the two men with two of their friends. Metadata from the photo indicates that it was shot with an iPhone at 8:20 p.m. the night before the plane departed. CNN has blurred the faces of the other two men to protect their identities. 

WHAT HAPPENED? 

To fly out of Malaysia, Reza and Nourmohammadi used passports that were stolen in Thailand, a booming market for stolen passports. The passports belonged to citizens of Italy and Austria. 

"Thailand remains a robust venue for the sale of high-quality, false passports (which includes altered, stolen passports) and other supporting documentation," said Paul Quaglia, who has been working in the region as a security and risk analyst for 14 years. 

The Italian, Luigi Maraldi, 37, told reporters he reported his passport stolen in August. The Austrian, Christian Kozel, 30, had his stolen in July 2013.  QUESTIONS:

Q1:
1. What was being done with Malaysia Airlines Flight 370?
2. What was the discussion surrounding Malaysia Airlines Flight 370?
3. 
Q2:
1. When did Malaysia Airlines Flight 370 disappear?
2. What day of the week did Malaysia Airlines Flight 370 disappear?
3. 
Q3:
1. What was Malaysia Airlines Flight 370's point of departure?
2. Where did Malaysia Airlines Flight 370 leave from?
3. 
Q4:
1. Where was Malaysia Airlines Flight 370 supposed to land?
2. What was the intended destination of Malaysia Airlines Flight 370?
3. 
Q5:
1. Who were some passengers on Malaysia Airlines Flight 370?
2. Who were some people that boarded Malaysia Airlines Flight 370?
3. 
Q6:
1. What was the age of the oldest passenger mentioned in the article?
2. How old was the oldest passenger the article talks about?
3. 
Q7:
1. What was the age of the youngest passenger mentioned in the article?
2. How old was the youngest passenger the article talks about?
3. 
Q8:
1. Did Delavar Seyed Mohammad Reza and Pouri Nourmohammadi have passports in Malaysia?
2. Were Delavar Seyed Mohammad Reza and Pouri Nourmohammadi in possession of passports when they entered Malaysia?
3. 
Q9:
1. Did Delavar Seyed Mohammad Reza and Pouri Nourmohammadi leave Malaysia with their Iranian passports?
2. Did Delavar Seyed Mohammad Reza and Pouri Nourmohammadi use their Iranian passports to depart from Malaysia?
3. 
Q10:
1. Do authorities think that Delavar Seyed Mohammad Reza and Pouri Nourmohammadi werre terrorists?
2. Are Delavar Seyed Mohammad Reza and Pouri Nourmohammadi presumed to be terrorists by officials?
3. 
