Prince Hamza, who had been groomed by his mother Queen Noor to succeed his late father King Hussein, has been pushed into the political wilderness since he was sacked as crown prince.
In a video leaked to the British Broadcasting Corp., Hamzah - a former crown prince stripped of his title in 2004 - said he was visited early Saturday by the country's military chief and told he was not allowed to go out, communicate with people or meet with them.
He said a number of his friends had been arrested, his security removed and his internet and phone lines cut.
In what Prince Hamzah described as his last available form of communication before his satellite internet was cut off, he accused the country's leaders of corruption, incompetence and harassment. The BBC says it received the statement from Hamzah's lawyer.
Hamzah said he had been informed he was being punished for taking in part in meetings in which the king had been criticized, though he said he was not accused of joining in the criticism. "I am not the person responsible for the collapse of the board of directors, the corruption and incompetence that has reigned in our board structure for the past fifteen to twenty years". I am not responsible for the lack of faith that people have in their institutions.
A top former Jordanian royal aide was among several suspects arrested Saturday in a security sweep, as the army cautioned a half-brother of King Abdullah II against damaging the country's security.
The army chief indicated that the investigations are ongoing and their results will be announced with full transparency and clarity.
He also stated that die Investigations into the arrested people have already started and pointed out that die Arrests of Jordanian personalities continue so far. At the time, he said he will remain devout support to Abdullah in official letter published by state media. "King Abdullah is a key partner of the United States, and he has our full support", State Department Spokesperson Ned Price said in a statement.
The details remained murky, but any internal unrest would raise alarms among the US and other Western nations, which have long viewed Jordan's ruling monarchy as a key military ally and a bastion of stability in a volatile region.
The Gulf Cooperation Council (GCC) also voiced support.
The former crown prince of Jordan Hamzah bin Hussein was on Saturday put under house arrest as part of a crackdown on the governments' critics.
Stability in Jordan and the status of the king has always been a matter of concern, particularly during the Trump administration, which gave unprecedented support to Israel and sought to isolate the Palestinians, including by slashing funding for Palestinian refugees.
Abdullah dismissed Hamzah as heir to the throne in 2004 in a move that consolidated his power.
Huneiti said that Prince Hamzah was asked to "cease any movement and activities that could be used to target the security and stability of Jordan " and that "a comprehensive joint investigations carried out by the security services led to the arrests of Sharif Hassan Bin Zaid and Bassan Awadallah and others", Petra reported. It gave no details.
An intelligence official told The Washington Post the plan was "far-reaching" and "well organised" and said they appeared to have "foreign ties".
Multiple countries have expressed their support for King Abdullah after the arrests were made.
Bassem Ibrahim Awadallah, the former head of the Royal Household, has also been detained.