Al-Masry Al-YoumClashes between armed forces and supporters of Mohamed Morsy struck Be'r al-Abd in western Arish on Monday, eyewitnesses told Al-Masry Al-Youm, leaving 10 people injured.
Nine civilians and one soldier were injured in the violence.
A security source told German news agency DPA that clashes between army and police forces and protesters broke out when pro-Morsy demonstrators tried to block the Arish-Qantara international road.
Nine civilians and a soldier were injured, according to the security source.
Unrest broke out in Egypt's restive North Sinai after security forces violently dispersed pro-Morsy sit-ins in Cairo and Giza on 14 August. There have been numerous attacks on security checkpoints and buildings since the demonstrations were broken up.