At least nine people were killed in separate militant attacks in Egypt on Monday, a day after clashes between supporters of deposed President Mohammed Morsi and police left over 50 people dead.
At least three people were killed and around 50 injured when a massive car explosion hit the security headquarters in a southern Sinai town, officials said.
Six Egyptian army personnel were also killed near the Suez Canal city of Ismailia, when masked gunmen attacked an army patrol.
"Masked assailants fired at the patrol from a private car," Ismailia's security director was quoted as saying by Ahram Online.
The attacks came a day after loyalists of ousted Morsi, hoping to galvanise their flagging protest movement, clashed with police as they tried to march on Cairo's Tahrir Square steeped in symbolism.
In a separate incident today, unidentified assailants attacked the main satellite centre with at least two rocket propelled grenade hitting the country's main satellite earth station in Cairo, which damaged a satellite communication dish, security officials said.
The attack on the troop took place north of the city, where suspected militants have repeatedly targeted security forces in recent weeks, the officials said.
More than 100 policemen have been killed across Egypt in attacks and clashes, especially since the military toppled Islamist president Mohammed Morsi on July 3.
The officials said one of the rockets left a 25 centimetre breach in a satellite dish used for international phone calls.
At least 51 people were killed on Sunday in clashes, mostly in Cairo.
The death toll, yesterday, was the highest in clashes between Islamists and police since several days of violence beginning August 14 killed more than 1,000 people, mostly Islamists.