Another powerful storm is headed toward Myanmar's cyclone-devastated delta and the U.N. is warning of a second wave of deaths.

Thailand's prime minister says, however, that Myanmar officials told him they are in control of the cyclone relief operations and doesn't need foreign experts.

Prime Minister Samak Sundaravej says the Myanmar junta guaranteed that there are no disease outbreaks and no starvation among the estimated 2 million survivors.

Samak says Myanmar does not want any foreign aid workers because they "have their own team to cope with the situation."

Samak was talking to reporters Wednesday after returning from Myanmar's main city of Yangon, where he met with his counterpart, Prime Minister Lt. Gen. Thein Sein.