Two leaders of the Islamist Wasat party that support ousted president Mohamed Morsy were arrested on Monday.
Wasat Party leader Abul-Ela Madi and his deputy Essam Sultan were arrested in an apartment in Cairo. Police seized large amounts of money in US dollars, euros and Egyptian pounds, local media reported.
Both politicians were transferred to Tora Prison, southern Cairo, where ousted president Hosny Mubarak is detained.
Madi and Sultan were staunch supporters of Morsy. Prosecutors issued arrest warrants for them along with leaders of Morsy’s Muslim Brotherhood, for inciting violence.
The arrests come after dozens were killed in Egypt at the weekend in clashes that have continued unabated since the army ousted Morsy on July 3.
A security official said one policeman died on Monday of wounds sustained during the clashes between Morsi supporters and security forces on Saturday.
The Muslim Brotherhood group and allied Islamists said Morsy was ousted in a military coup.
The army and its supporters accuse the Brotherhood and Morsy of inciting violence in Egypt. The Brotherhood has vowed to continue protesting until Morsy is restored to power.
EU foreign policy chief Catherine Ashton was scheduled to meet with government officials on Monday in Cairo as well as representatives of the Brotherhood’s Freedom and Justice Party.
She said “a fully inclusive transition process... must lead — as soon as possible — to constitutional order, free and fair elections and a civilian-led government.”