Survivors carry aid and belongings salvaged from ruins of the Ban Mae Surin refugee camp near Mae Hong Son March 24, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

Two boys walk through the ruins of the Ban Mae Surin refugee camp near Mae Hong Son March 24, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

A survivor cries at the fire-gutted Ban Mae Surin refugee camp near Mae Hong Son March 24, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

Refugee women and other survivors look on as investigation continues in the ruins of the Ban Mae Surin refugee camp near Mae Hong Son March 24, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST TPX IMAGES OF THE DAY) 

Por Ku Sae, a 14-year-old refugee who lost eight family members and is the only survivor of her family, cries at the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: SOCIETY TPX IMAGES OF THE DAY) 

A survivor reacts as she stands in ruins of the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST TPX IMAGES OF THE DAY) 

Forensic experts and security personnel work amid remains of the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION SOCIETY) 

Body bags cover charred bodies of victims of a fire at the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION SOCIETY) 

Children walk through ruins of the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

A survivor reacts as remains of victims are collected from the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at the camp, which is home to thousands of refugees from Myanmar near the Thai-Myanmar border, on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: CIVIL UNREST DISASTER POLITICS RELIGION SOCIETY) 

Survivors walk through the ruins of the Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at the camp, which is home to thousands of refugees from Myanmar near the Thai-Myanmar border, on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION DISASTER SOCIETY POLITICS ENVIRONMENT) 

Survivors walk through ruins of the burnt Ban Mae Surin refugee camp as a helicopter flies over, near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

Survivors salvage their belongings at the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

Body bags cover charred bodies of victims of fire at the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: SOCIETY) 

Por Ku Sae, a 14-year-old refugee who lost eight family members and is the only survivor of her family, cries at the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: SOCIETY) 

Body bags cover charred bodies of victims of a fire at the burnt Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION SOCIETY TPX IMAGES OF THE DAY) 

Survivors register to receive aid after their homes were burnt at the Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp home to thousands of refugees from Myanmar, near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST POLITICS SOCIETY DISASTER) 

Survivors wait to receive aid after their homes were burnt at the Ban Mae Surin refugee camp near Mae Hong Son March 23, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST) 

A man walks between body bags containing the remains of victims of the fire at the Ban Mae Surin refugee camp near Mae Hong Son March 24, 2013. At least 42 people have died in a fire at a camp which is home to thousands of refugees from Myanmar near the Thai-Myanmar border on Friday, local media reported. REUTERS/Athit Perawongmetha (THAILAND - Tags: RELIGION CIVIL UNREST TPX IMAGES OF THE DAY)