Abu Dhabi: The United Arab Emirates is to try 41 people of different nationalities on terror charges.
According to the prosecutors, the accused allegedly wanted to overthrow the government to set up an Islamic State group-style caliphate in the Gulf state.
The suspects, who include Emiratis as well as foreigners, are accused of setting up a group in a bid to "seize power and establish a caliphate," the prosecutor general said.
They are accused of setting up cells to train members in handling weapons and the manufacture of explosives in preparation for attacks on UAE soil.
Prosecutors charge that they were "in contact with foreign terrorist organisations... to help them achieve their goals."
The UAE is part of the US-led coalition that has been carrying out air strikes against IS in Syria since September last year.
In July, following the murder of an American teacher in an Abu Dhabi mall, authorities enacted tougher anti-terror legislation, including harsher jail terms and even introducing the death penalty for terror-related crimes.
Alaa Bader al-Hashemi, 30, was executed last month for December's stabbing murder of Ibolya Ryan, 47.
The prosecutor said Sunday that the cell was highly organised, operating under a "hierarchy" to recruit young Emiratis, obtain weapons and manufacture explosives, and spread propaganda.
It is the second time in recent years that the UAE has carried out a mass trial on terrorism charges.
Like neighbouring Saudi Arabia, the UAE regards the Muslim Brotherhood, the party of ousted Egyptian president Mohamed Morsi, as a terrorist organisation.
In 2013, it sentenced 60 people to jail terms of between seven and 15 years for links to the Brotherhood in the first trial of its kind in the country.