ADVERTISEMENT At least nine people have been killed in an explosion at a fireworks factory in central Thailand, local officials said on Wednesday. The blast occurred in Suphan Buri province, about 95 kilometres northwest of Bangkok in the heart of the country’s central rice-growing region. The cause of the explosion was not immediately known. The Samerkun Suphan Buri Rescue Foundation reported nine deaths and said two people were taken to hospital in critical condition. The provincial