Thai surrogate Pattaramon Janbua plays with seven-month-old Gammy at a hospital in Chonburi province. Picture: Rungroj Yongrit

Bangkok - An Australian same-sex couple has been permitted to leave Thailand with a surrogate baby after background checks by Thai immigration authorities, reports said Sunday.

The couple sought assistance from the Australian embassy in Bangkok on Friday after they had been denied the departure.

Four Australian and American couples were prevented from leaving the kingdom with children born from Thai surrogate mothers on Thursday.

The scrutiny follows a surrogacy controversy in Thailand brought to attention by an Australian couple that allegedly abandoned a Down syndrome surrogate baby.

The Thai government has drafted new laws to ban commercial surrogacy.