Updated

Egyptian presidential candidate Ahmed Shafiq has unleashed a new round of accusations against his rival's Muslim Brotherhood movement, accusing them of killing protesters during the 2011 uprising that overthrew Hosni Mubarak.

He also repeated in a Friday news conference earlier other accusations he has previously leveled against the group: that they worked with foreign powers to break into prisons and let criminals escape.

Brotherhood spokesman Mohammad Ghozlan called Shafiq's accusations illogical.

Shafiq, who is running against the Brotherhood's Mohammed Morsi, was Mubarak's last prime minister. His accusations fall on the same day that thousands of Egyptians are protesting in Cairo and other major cities across the country to demand the implementation of a law that would ban him from the June 16-17 runoff elections for his ties to the former regime.