CAIRO (Sputnik) — According to the Akhbar Ajila media outlet, the second explosion occurred at the training center of a police station.
The blast reportedly killed one policeman. However, some media denied the information about victims.
Earlier in the day, the first blast in the city of Tanta claimed lives of at least 15 people, injuring 50 others. Egypt's Coptic Christian minority has been the target of extremist violence since the 2011 Arab Spring.