“Doctors said his condition is improving and he needs a full examination,” acting ambassador Dornath Aryal said.
Samitivej Hospital in Bangkok confirmed that Mr Shah had been admitted but declined to discuss his condition.
Mr Shah was ordered to undergo a month’s drug rehabilitation treatment at Bang Jo Prison in Phuket after being found guilty of possession of marijuana. He was detained again in December for smashing property at a luxury apartment in Bangkok. He denied the charge and was released on bail.
Mr Shah became heir to the throne in 2001 after his cousin, former crown prince Dipendra, killed nine members of his family, including the king and queen, in a drink-and-drugs-fuelled rampage before apparently turning his gun on himself.
Nepal abolished its monarchy in 2008. Read the original story here