Five small explosions took place early Wednesday morning during rush hour, injuring at least five people, reported media outlets.
Three small explosions exploded in three different Cairo metro stations, followed by two other explosions near a courthouse in Heliopolis.
The metro explosions hit Ghamra metro station, Shubra El-Kheyma station and Hadyek Al-Quba station.
Three were wounded in the Shubra station explosion, while state media reported one injury in Ghamra and one other injry in Al-Quba, however, injuries reported were not life threatening.
The Interior Ministry, in a statement on Facebook, said that there were only two explosions: one in Ghamra station and another in Shubra station, which resulted in one injury in Shubra station.
Interior Ministry spokesperson Abdel-Fattah Othman said, the first blast, which took place in Shubra station, was caused by an improvised bomb carried in by a person, while the Ghamra explosion was placed in a rubbish bin.
The ministry spokesperson also said that one of the injured in the metro station explosions was a suspect.
A spokesperson from the metro company told state media that the metro services were operating normally.
Two other improvised bombs placed underneath two cars exploded outside a courthouse in Heliopolis, but left no injuries.
Al Ahram reported one other home-made explosive device placed near the area was defused.
Security forces continued to search the locations of the blasts for further explosives, the interior ministry said.
Wednesday’s explosions are the first of such casualties since President Al-Sisi was sworn into office.
Militants have continued to pose a threat to national security as attacks, primarily blamed on Ansar Bait Al-Maqdis, increased following the ouster of President Mohamed Morsi of the Muslim Brotherhood last July after massive protests against his rule.
Egypt’s government declared the Muslim Brotherhood as a terrorist organization last year and has since begun a crackdown on prominent Muslim Brotherhood leaders and their supporters.
Former Field Marshal Abdel Fattah Al-Sisi was sworn into office earlier in June after his landslide victory against Nasserist Hamdeen Sabbahi.