A police officer was injured early Thursday in a blast outside a police station in Alexandria.
The officer was wounded by a shrapnel, Alexandria security chief said, adding that minor damages also occured in the station's building.
Security forces cordoned the vicinity of the police station off, and sealed all roads leading to the explosion site, according to Security Chief Amin Ezz.
Meanwhile, explosives' experts dismantled a bomb planted at a train station east of Alexandria, an official at the railway authority in West Delta said, adding that train movement was not affected in the process.
Militants have stepped up attacks targeting security forces in Egypt, particularly in the Sinai Peninsula, since the army's ouster of Islamist President Mohamed Mursi in July 2013, which followed mass protests against his rule.
Ministry of Interior Spokesman Hany Abdel Lattif said that 153 policemen were killed in 2014 alone.