A Cairo criminal court has acquitted a leading member of the now-defunct National Democratic Party of incitement to kill protesters during clashes in Tahrir Square in April 2011.
Wael Abu El-Leil, Osama El-Shashatawy and Amr Youssef were also acquitted of other charges, including attacking personal freedoms.
On 8 April 2011, revolutionary groups organised a million-man rally to protest against the ruling Supreme Council of the Armed Forces (SCAF) and to demand the trial of ex-president Hosni Mubarak.
A group of nearly 20 uniformed army officers joined the protest.
After the end of the protest, hundreds of protesters, along with the officers, stayed in Tahrir Square and vowed to keep protesting until Mubarak was tried and other demands were met.
After midnight military police dispersed the sit-in and at least two protesters were killed.
On 9 April 2011, the SCAF ordered the arrest of business tycoon Ibrahim Kamel, an NDP strong men, and accused him of being involved in instigating the violent clashes between demonstrators and army forces.
It also called for the arrest of Kamel's alleged followers, Wael Aboul-Leil, Tarek Soliman and Khaled Mohamed Ismail.
Kamel was acquitted of the charges in May 2011.
The National Democratic Party, Egypt's ruling party for nearly 40 years, was dissolved by a court ruling in April 2011.