A committee tasked with appraising the monetary assets of the Muslim Brotherhood has seized the funds of 30 Brotherhood leaders as well as those of 12 NGOs and six companies allegedly affiliated to the outlawed group.
The head of the committee, Ezzat Khamis, said its decision was based on the investigations of security and executive bodies.
The alleged Brotherhood-affiliated companies operate in the fields of media production and contracting, he added.
Prosecutors have not released the names of the individuals, NGOs or companies whose funds were seized.
Since March, the panel has seized the funds of 702 Brotherhood leaders in addition to placing the management of 1,050 NGOs and some 147 schools believed to be affiliated with the group into a government trusteeship.
The Brotherhood was banned by a court ruling in September of last year, two months after the ouster of Islamist president Mohamed Morsi. Two legal actions and a challenge have been filed against the ruling, which remains unresolved.
The group was deemed a terrorist organisation by Egyptian authorities in December, a designation that was later upheld by a Cairo court.