About two dozen journalists saw the fires in Gawdu Zara village in northern Rakhine state on a government-controlled trip.
About 164,000 Rohingya from the area have fled across the border into Bangladesh in less than two weeks since Aug. 25, when Rohingya insurgents attacked police outposts in Gawdu Zara and several other villages, the U.N. refugee agency said Thursday.
The military has said nearly 400 people, mostly Rohingya, have died in clashes and that troops were conducting "clearance operations." It blames insurgents for setting the villages on fire, without offering proof.
Rohingya who have fled Myanmar, however, have described large-scale violence perpetrated by Myanmar troops and Buddhist mobs — setting fire to their homes, spraying bullets indiscriminately, stabbing civilians and ordering them to abandon their homes or be killed.
On the Myanmar side of the border, reporters saw no Rohingya in any of the five destroyed villages they were allowed to tour Thursday, making it unlikely they could have been responsible for the new fires.
An ethnic Rakhine villager who emerged from the smoke said police and Rakhine Buddhists had set the fires. The villager ran off before he could be asked anything else.
No police were seen in the village beyond those who were accompanying the journalists. But about 10 Rakhine men with machetes were seen there. They looked nervous and the only one who spoke said he had just arrived and did not know how the fires started.
Among the buildings on fire was a madrassa, an Islamic school. Copies of books with texts from the Quran, Islam's holy book, were torn up and thrown outside. A nearby mosque was not burned.
Another village the journalists visited, Ah Lel Than Kyaw, was blackened, obliterated and deserted. Cattle and dogs wandered through the still-smoldering remains.
Local police officer Aung Kyaw Moe said 18 people were killed in the village when the violence began last month.
"From our side, there was one immigration officer dead, and we found 17 dead bodies from the enemy side," he said.
He said the fires were set Aug. 25, though some continued to burn Thursday. Virtually all buildings in the village seen by journalists had been burned, along with cars, motorbikes and bicycles that fleeing villagers left behind. A mosque was also damaged.
Columns of smoke could be seen rising in the distance, and distant gunshots could be heard.
"They burned their own houses and ran away," Aung Kyaw Moe said. "We didn't see who actually burned them because we had to take care of the security for our outpost. ... But when the houses were burned, Bengalis were the only ones in the village."
Buddhist-majority Myanmar refers to Rohingya as Bengalis, contending they migrated illegally from Bangladesh, though many Rohingya families have lived in Myanmar for generations.
Burning the homes of Rohingya can make it less likely they will return. Tens of thousands of Rohingya were driven from their homes in another wave of violence in 2012. Many are now confined to camps, while the land they once held is either vacant or occupied by Buddhist squatters.
Nay San Lwin, a Rohingya activist and blogger based in Europe with contacts in northern Rakhine, said that according to witnesses, the Myanmar military, border guard police and Rakhine villagers came to Ah Lel Than Kyaw and burned the houses from Monday to Wednesday.
On Aug. 25, he said, young men with swords and knives tried to attack the border guard outpost in Aley Than Kyaw but failed. The authorities took away all Buddhist villagers, and many Rohingya villagers fled on their own.
Nay San Lwin said the remaining villagers left after the military warned them they would be shot if they did not leave.
Myanmar's leader, Aung San Suu Kyi, has dismissed the Rohingya crisis as a misinformation campaign.
According to her office, she said such misinformation helps promote the interests of "terrorists," a reference to the Rohingya insurgents who attacked security posts on Aug. 25.
The crisis response director for Amnesty International called Suu Kyi's response "unconscionable."
On Thursday, Suu Kyi told reporters her government was working to improve security and livelihoods for Rohingya, but that "it's a little unreasonable to expect us to resolve everything in 18 months" since her administration took office.
With Rohingya fleeing by the thousands daily across the border, pushing existing camps in Bangladesh to the brink, the government in Dhaka pledged to build at least one more.
The International Organization for Migration has pleaded for $18 million in foreign aid to help feed and shelter tens of thousands now packed into makeshift settlements or stranded in a no man's land between the two countries' borders.
U.N. agencies said they were distributing food to new arrivals, about 80 percent of whom were women and children, joining about 100,000 who had already been sheltering in Bangladesh after fleeing earlier convulsions of violence in Myanmar.
Aid workers said many were arriving with violence-related injuries, severe infections or childbirth complications.
Bangladesh Prime Minister Sheikh Hasina said Thursday that her country offered refuge to Rohingya on humanitarian grounds, but called it a "big burden for us".
The "international community must take the responsibility," she said.
Hasina's government has taken an initiative to identify the refugees to prevent terrorists from entering Bangladesh under disguise, the local Bangladesh Sangbad Sangstha news agency reported, quoting the prime minister's Press secretary Ihsanul Karim.
With so many Rohingya fleeing, it is unclear how many remain in Myanmar amid reports of soldiers burning villages and killing civilians.
Before the recent violence, aid experts estimated about 1 million Rohingya were living in northern Rakhine state. But aid agencies have been unable to access the area since.
Turkish First Lady Emine Erdogan and Foreign Minister Mevlut Cavusoglu visited a Rohingya camp in Bangladesh and then met with Hasina.
They said Myanmar agreed to allow its aid officials to enter Rakhine state with a ton of food and goods for Rohingya. They also pledged continuing support for the Rohingya.