CAIRO (Reuters) - Suspected militants killed six Egyptian soldiers near the Suez Canal and fired rocket-propelled grenades at a state satellite station in Cairo on Monday, suggesting an Islamist insurgency was gathering pace three months after an army takeover.
Dozens of supporters of the Muslim Brotherhood were killed in clashes with security forces and political opponents on Sunday, one of the bloodiest days since the military deposed Islamist President Mohamed Mursi in July.
The death toll from that day's violence across the country rose to 53, state media said, with 271 people wounded.
The Brotherhood denies the military's charges that it incites violence and says it has nothing to do with militant activity, but further confrontations may shake Egypt this week, with Mursi's supporters calling for further protests this week.
They are likely to be angered by the publication of an interview with Egypt's army chief on Monday in which he said he told Mursi as long ago as February he had failed as president.
Sunday's clashes took place on the anniversary of the 1973 war with Israel - meant to have been a day of national celebration. The countries signed a peace agreement in 1979.
Authorities had warned that anyone protesting against the army during the anniversary would be regarded as an agent of foreign powers, not an activist - a hardening of language that suggested authorities would take a tougher line.