BANGKOK, Dec 5, 2010 (AFP) - Thailand's king, the world's longest reigning monarch, on Sunday left the hospital where he has been staying for over a year to join elaborate celebrations and make a speech to mark his 83rd birthday.
Bhumibol Adulyadej, who is widely revered as a demi-god by many Thais, said citizens should "do our duties for the country's benefit" in the anniversary remarks to top dignitaries and politicians, televised across the country.
The king was admitted to hospital in September 2009 for treatment of a respiratory condition, and although he has appeared in public several times since, there has been no explanation from the palace over his prolonged stay.
Any discussion of the royal family is an extremely sensitive topic in politically turbulent Thailand, where the palace has also been silent over the organisation of the king's succession.
The frail monarch, who has spent six turbulent decades on the throne, was greeted by thousands of Thais lining the street and waving flags as he left Bangkok's Siriraj Hospital for the Grand Palace to make the brief speech.
During the address, he said those who act carelessly will "bring damage to themselves and to the nation".
The king has no official political role but is seen as a unifying figure in a country that is frequently riven by political unrest, including mass opposition protests this year that turned deadly.
He remained largely silent during the political crisis in April and May, which saw a series of street clashes between armed troops and anti-government "Red Shirt" protesters that left more than 90 people dead.
The birthday of King Bhumibol is marked by a public holiday and celebrated by Thais across the kingdom with fireworks and Buddhist rituals.
Under strict lese majeste rules, anyone can make an accusation that another person insulted the monarchy and police are duty-bound to investigate.
If found guilty it is punishable by up to 15 years in prison.
