But they say investigations are still underway to verify the victim's identity.
The national carrier also says it is investigating the source of the screenshots that went viral on social media.
In a tightening of security inspections, the TSA now requires travellers to separate their food from the rest of their carry-on luggage.
Stewardess had earlier refused to allow the couple to bring their luggage into the cabin as it was overweight.
Airport staff member hears passenger's remark when he is checking in his luggage and reports him to police.
Man was heading to Indonesia from Dhaka with tortoises in luggage and was arrested while in transit at KLIA.