BANGKOK - Thailand said Thursday it has no extradition agreement with Nicaragua, which announced it has given a diplomatic passport to fugitive ex-premier Thaksin Shinawatra.

'We have diplomatic relations with Nicaragua but no extradition agreement,' foreign ministry spokesman Tharit Charungvat told AFP.

Tharit said Thailand had "not yet" issued a formal protest to authorities in Managua, who said in a statement that Thaksin had been appointed as "an ambassador of Nicaragua on a special mission" to help attract investment.

Thai authorities said Wednesday they had cancelled Thaksin's passport after his supporters stormed the venue of an Asian summit at a Thai beach resort on the weekend, forcing it to be cancelled.

'The ministry can cancel or recall a passport if it can prove that a person has caused damage to the country,' government spokesman Panitan Wattanayagorn said at the time.

Thaksin was ousted in a military coup in 2006 and lives in exile to avoid a two-year jail term for corruption. He has made a series of speeches to his supporters in Thailand in recent weeks calling for a "revolution".

In a television interview filmed in Dubai before the announcement of the passport cancellation, the billionaire tycoon denied that he had incited violence.