The Myanmar [Burma] Police Force said on its official Facebook page that the victims had died from burns or smoke inhalation.
"According to the investigation by township police officers, the fire was caused by excessively high (electric) voltage," it said.
On 22 March, a state of emergency was enforced in the central town of Meiktila in Mandalay region where communal violence began after a reported argument at a gold shop.
President Thein Sein has warned that the government will use force if necessary to stop "political opportunists and religious extremists" from fomenting hatred between faiths.
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