Sources in the island of the killing of three members of the Egyptian army - including a captain - on Monday in two separate attacks south of Rafah and El-Arish in Sinai.
The sources added that three other soldiers were wounded in the attacks.
For its part, quoted the Associated Press of Egyptian security sources that an explosive device exploded in a convoy of security forces near the city of Rafah.
The sources added that the bombing killed a recruiter and wounded four others, pointing out that the security forces carried out a raid in the city of Arish and arrested four people said they were planning attacks.
Two weeks ago, Egyptian authorities reported the killing of 40 gunmen in the Sinai, which has been witnessing attacks for years to organize the Islamic state, which left hundreds of dead and wounded members of the Egyptian army and security.