CAIRO (AP) -
Witnesses say a dozen masked attackers fired birdshot at protesters who have camped outside Egypt's presidential palace in Cairo for the past month, wounding a number of people.
Paramedic Mohammed Sultan put the total number of wounded in the Saturday evening attack at 15, including nine members of the security forces and six protesters.
The witnesses say attackers set fire to tents at the sit-in. Footage on Egyptian TV stations showed more people coming to join the protests.
The sit-in was started Dec. 4 by opponents of Islamist President Mohammed Morsi. They are demanding the annulment of Egypt's new Islamist-backed constitution.
At least 10 people died in street battles outside the palace on Dec. 5 that broke out when supporters attacked the sit-in.