Unknown gun men kill six at Cairo protest

Unknown assailants have killed at least six people at a protest against Egypt's ruling generals near the defence ministry in Cairo, officials say.

Witnesses described how the attackers set on them at dawn using rocks, clubs, firebombs and firing shotguns.
Up to 100 people were also reportedly injured and are being treated at a field clinic in the Abbasiya district.
Many of the protesters are supporters of a Salafist preacher barred from standing in the presidential election.
Hazem Abu Ismail was disqualified because his mother held dual Egyptian-US citizenship, violating rules laid out in a constitutional declaration approved after an uprising forced President Hosni Mubarak to step down.
Mr Abu Ismail complained that he was the victim of a "plot" by the military authorities, but the election commission said it had found no evidence.

'Hired' The BBC's Jon Leyne in Cairo says the strong suspicion is that the men who attacked Mr Abu Ismail's supporters in Abbasiya were hired by the government to break up their sit-in, which began on Saturday.

Soldiers and police deployed in the area reportedly did not intervene to stop the clashes, nor did they when one person was killed in a similar attack early on Sunday.

However, pro-military state media have in the past reported that the attackers were residents angered by the disruption caused to their lives by the protesters.
Opposition to the ruling Supreme Council of the Armed Forces (Scaf) has built up steadily since it assumed Mr Mubarak's presidential powers in February 2011.
The council has been accused of stifling dissent by killing protesters, detaining critics and seeking to undermine the youth and civil society groups which led the uprising.
The generals have promised to hand over power to a civilian administration by the end of June, after a presidential election that they say will be free and fair.
The election's first round is scheduled for 23 and 24 May, with a run-off vote for the top two candidates expected on 16 and 17 June.
Correspondents say the race seems to have narrowed to a contest between two Islamists - Abdul Moneim Aboul Fotouh, an independent, and Mohammed Mursi, head of the Muslim Brotherhood's Freedom and Justice Party - and the former head of the Arab League, Amr Moussa.