The Fayoum Criminal Court sentenced 31 Muslim Brotherhood members to life in prison and 12 others to three years in a maximum security prison.
The verdict was issued on Monday under tight security presence outside the court, with 16 of the defendants present in court. The rest were sentenced in absentia.
The defendants are accused of “belonging to a terrorist organisation, blocking roads and disrupting traffic”, state-run television reported. The Muslim Brotherhood was designated a terrorist organisation on 25 December.
In the first trial session on 4 May, the court decided to set 2 June as the verdict date. The May session was also held under tight security presence.
The defendants were arrested for violence that occurred on 4 November, the day in which Muslim Brotherhood politician and ousted president Mohamed Morsi appeared in court for the first time.
Clashes broke out in Fayoum, located about 100 kilometres southwest of Cairo, on that day between Muslim Brotherhood protesters and other residents. Security forces reportedly fired teargas in response to the clashes.
