Myanmar struggled Monday to recover from a cyclone that killed more than 3,900 people and perhaps as many as 15,000.

Foreign Minister Noppadol Pattama of Thailand met with Myanmar's ambassador on Tuesday, according to Reuters. After the meeting, Mr. Noppadol said that 15,000 people had been killed and another 30,000 were missing.

If those numbers are accurate, the death toll would be the highest from a natural disaster in Asia since the tsunami of December 2004, which devastated coastlines in South Asia and claimed 181,000 lives.

On Monday, three cabinet ministers told diplomats the death toll could reach 10,000 people in the delta region, an area that is home to nearly half of Myanmar’s 48 million people, according to Richard Horsey, a spokesman for the United Nations disaster response office in Bangkok.