Prime Minister Nguyen Tan Dung on November 25 cabled a message of condolences to his New Zealand counterpart John Key over an explosion that occurred at the Pike River coal mine on New Zealand South Island's West Coast on Nov. 24.

The massive explosion tore through the colliery and killed 29 miners, including two Australians, two Britons and one South African, that have been missing since the first blast on the afternoon of Nov. 19.

This is seen as the worst disaster in the New Zealand mining industry in century, plunging the country into mourning. The last accident on this scale was in 1914 when 43 people died in a gas explosion at a mine at Huntly on New Zealand ’s North Island./.