A court in
One of the group, who went on trial last month, is a senior Brotherhood figure, Khayrat al-Shatir.
They are believed to be charged with membership of a banned organization, money-laundering and backing terrorism.
It was the first time in seven years that Brotherhood members had stood trial under military jurisdiction.
A civilian court has twice ordered the release of Mr Shatir and some of the other defendants, but the authorities overturned the rulings under
The Muslim Brotherhood is outlawed in
The Brotherhood ran in the legislative elections in 2005, with candidates standing as independents, and won 88 seats in the 454 parliament.
Photo caption
Khayrat al-Shatir, a senior Brotherhood figure