The United Nations Secretary General, Ban Ki Moon, has said he is immensely frustrated at what he called the unacceptably slow delivery of aid to the victims of Cyclone Nargis in Burma.

Mr Ban also warned that an outbreak of infectious diseases could dwarf the current crisis, unless more aid got into the country very quickly.

Although there appears to have been a significant increase in the relief effort, a BBC correspondent in the country says many people in coastal areas far from Rangoon are still in desperate need of assistance, and that heavy rain continues in the worst hit areas.

The Burmese authorities now say almost thirty-two thousand people died in the cyclone and almost thirty thousand are still missing.