Security forces arrested several officials on Saturday.
It was made public a day after an Israeli businessman and close personal friend to Hamzeh, Roy Shaposhnik, said that he had offered the prince's wife and children the use of a private jet to escape Jordan, suggesting that the royals accused by the government of "promoting sedition" may have been planning to leave the country.
Safadi said Hamzah had engaged in "recent activities and movements" that aimed to incite people against the state.
"The kingdom stresses its full support for the Hashemite kingdom of Jordan. and for the decisions and measures taken by King Abdullah II and Crown Prince Hussein to safeguard security and stability", it said.
Safadi, who also holds the title of the deputy prime minister, did not specify which countries were involved in the alleged plot.
What was the reaction in Jordan?.
"Praying that truth and justice will prevail for all the innocent victims of this wicked slander". "God bless and keep them safe". Prince Hamzah, the army's chief of staff said on Saturday, had not been arrested but was asked to limit his movements. "One aim for people executing agendas to shake Jordan's stability", Sadafi said.
Bassem Awadallah, a long-time confidant of the king who later became minister of finance, and Sharif Hassan bin Zaid, a former royal envoy, were detained along with other unnamed figures, Petra said.
Awadallah, a proponent of economic reforms, resigned as chief of the royal court in 2008 amid allegations of interference in sensitive political and economic issues.
Arrests of top officials close to royal family members are rare in Jordan. He has investments in Saudi Arabia and has both Jordanian and Saudi citizenships. In the night from Saturday to Sunday, Hamzah had announced in a secretly recorded video leaked to the media that he had been placed under house arrest. I think it's unacceptable, in any form.
The fast-moving developments have shocked Jordanians unused to the sort of palace intrigue that has often plagued neighboring countries.
Majali told Roya "No one will be more compassionate to Prince Hamzah than his big brother His Majesty King Abdullah II".
"The Jordanian king, for his part, voiced his honest appreciation for the solidarity and support of [President El-Sis], which embodies the depth and strength of the historic relations between the two countries and the two brotherly peoples", Rady said.
Late Saturday and earlier Sunday following the security developments in Jordan, countries including Saudi Arabia, Egypt, Kuwait, Bahrain, Qatar, Yemen, Iraq, Palestine and the USA as well as the Gulf Cooperation Council and Organisation of Islamic Cooperation expressed solidarity with Jordan and support for measures taken to ensure its security. Analysts say they are closely watching the situation in Jordan and hoping it will not destabilize.
"The country has really suffered under the COVID-19 pandemic economically". He has good relations officially with Abdullah, his half-brother, and is a popular figure close to tribal leaders.
Amman-based journalist Rana Sweis told DW that Prince Hamzah's video appeal was "unprecedented".
On Saturday the military said it had issued a warning to the prince over actions targeting "security and stability" in the key US ally.
He added that when Huneiti visited his home, "I recorded what he said and sent it to my friends overseas and to my family, in case anything happens". Iran's Foreign Ministry expressed opposition "to any internal instability and foreign interference", and alleged that any "internal tension and instability in the West Asian region would be in favour of the Zionist regime". It borders Israel and the occupied West Bank, Syria, Iraq and Saudi Arabia and is the formal custodian of Jerusalem's Al Aqsa Mosque.
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