Even photos of Rwandan children are being shared as Muslims in Rakhine, while some have posted photos of Bangladeshi freedom fighters, describing them as insurgents helping the Rohingya.
Among those misled by the posts with false information is Mehmet Simsek, deputy prime minister of Turkey.
Some Myanmar people suggested the photo is of victims of a storm in May 2008, while some others suggested they are victims of river boat accidents in Myanmar.
But the appearance of the image on several websites dated last year suggests it is not from the recent violence in Rakhine state.
The second photograph, of a woman mourning a dead man tied to a tree, was taken in Aceh of Indonesia, in June 2003, by a photographer working for Reuters, according to the BBC.
The third photograph of two infants crying over the body of their mother is from Rwanda in July 1994. The photographer, Albert Facelly for Sipa, won a World Press Award for this photo in a series.
Turkish Deputy Prime Minister Simsek deleted the tweet three days later, saying, "Correction: My earlier twit regretfully included pics that wrongfully depicted massacre taking place in #Rohingya against #Muslims by error."
The photo of Bangladeshi freedom fighters shared on the Twitter contains the words: "Bengali extremist terrorists fighting to Myanmar citizen."
A user who shared the photo also wrote: "There is no Rohingya in Myanmar country. They are terrorists only."
The dead people include civilians, Myanmar authorities said.
Since the attacks, over 68,000 Rohingyas fleeing crackdown by Myanmar Army have entered Bangladesh, according to the UN.
At least 53 bodies, purportedly victims of capsize of boats packed with the fleeing Rohingya families, washed up on the Bangladesh shore in five days.
Three Rohingyas, including a couple, died in Bangladesh after being shot in Myanmar.