Clashes at Egypt’s Tahrir Square between President Mohammad Mursi injured more than 100, in the worst violence following the election of the new leader.

Clashes at Egypt’s Tahrir Square between President Mohammad Mursi injured more than 100, in the worst violence following the election of the new leader.

Mursi's Muslim Brotherhood movement and a coalition of secular-leaning groups held separate rallies on some of the thorniest issues facing the new democracy after last year's uprising which ousted president Hosni Mubarak.

The health ministry said at least 110 people were injured as protesters showered each other with stones and petrol bombs, after Mursi supporters tore down a podium from which anti-Brotherhood chants were being orchestrated, AFP news agency reported.

Protesters torched two buses used by the Brotherhood to drive supporters into central Cairo, sending plumes of smoke into the air, witnesses said.

The violence erupted as Mursi faced a backlash from judges after trying to sack the chief prosecutor following this week's acquittals of Mubarak-era officials on trial for a deadly attack on protesters during the 2011 uprising.

For its part, Brotherhood denied on Twitter that any of its members was involved in the fighting.
"We are not involved in Tahrir clashes, and none of our members were there," it wrote on its Twitter account, prompting a wave of derision from others who posted videos of apparent Brotherhood members in the square.