text:  The UN says Thailand has become the single biggest supplier of weapons to Myanmar's military authorities despite sanctions. A report by the UN's Special Rapporteur for Human Rights in Myanmar details where the Burmese army is getting its weapons from. It says Thai companies, facilitated by Thai banks, have emerged as the main suppliers. There's no evidence that the government in Bangkok is involved, but the UN has urged it to follow the lead of the authorities in Singapore.