An explosion hit a police institute east of Cairo on Saturday morning, injuring one police officer, a police official said.
The incident comes yet as another episode in a spate of explosions that have been rocking the country occasionally since the ouster of Mohamed Morsy from presidency last year, which prompted the state to declare Morsy's group as a terrorist organization.
Gamal Halawa, deputy director of the country's civil defense service, said the blast outside the Police Assistants Institute in Ain Shams had been caused by an IED thrown by an unknown assailant passing by on a motorcycle, which led to the injury of one policeman.
A security source said another bomb had been defused at the scene of the incident.
According to Halawa, the blast damaged the institute's wall, its power unit and the frontage of a neighboring building.
Alaa Abdel Zaher, chief of Cairo's bomb squad, said experts are moving to the scene to identify the circumstances behind the incident.
A medical source said the 23-year-old policeman was suffering from suffocation due to severe chest trauma.
Edited translation from Al-Masry Al-Youm
