A published picture showing a Thai national flag bearing the name "Thaksin" at a Manchester City football match has sparked controversy in Thailand. The Thai government said it was investigating the photo, which was published in Matichon newspaper last week. Thai Foreign Minister Noppadon Pattama said it was unlikely that former prime minister Thaksin Shinawatra was involved in the "improper act." He said it could have been done by Manchester City supporters who were unaware of the potentially negative meaning it sent to Thai people.