Egyptian authorities arrested senior Muslim Brotherhood figure Walid Al-Haddad early on Monday, security sources said.Al-Haddad, external relations coordinator of the Brotherhood's political arm, the Freedom and Justice Party, was apprehended in the Kafr Tohormous district in Giza, south of Cairo, over allegations related to "inciting violence."
Egypt's authorities have carried out a sustained clampdown on the Islamist group and their allies since Morsi's deposition on 3 July. The majority of the group's mid- and upper-echelons have been rounded up, along with several thousand other members and Islamist activists.
Morsi, Egypt's first freely elected president, has been held at an undisclosed location since his ouster by Egypt's army following massive protests against his year-long rule. He is being tried on charges related to inciting violence and jailbreak during the 2011 uprising that toppled autocratic president Hosni Mubarak, and was given an extra 30-day preventative detention on Sunday.
Those behind bars also include Brotherhood spiritual leader and its highest authority Mohamed Badie along with his second-in-command Khairat El-Shater.
Morsi's backers have accused the army of staging a coup, and decried the move as a violation of democratic principles.
The Brotherhood has spurned a transitional roadmap set forth by Egypt's interim authorities, intending to hold parliamentary and presidential polls by early next year.
In one of the deadliest incidents of violence since Morsi's exit, some 57 people were killed on Sunday during clashes between Morsi supporters and police, while thousands of pro-military protesters celebrated the anniversary of the 1973 Arab-Israeli war.
