CAIRO: A bomb detonated in a power transformer in Cairo’s slum area Manshiet Nasser, Youm7 quoted prosecution sources.
Residents of the area heard a loud explosion near the Petroleum Gases Company late Tuesday.
There were no damages or casualties reported as a result of the blast, which has caused a partial power cut in some districts.
Bomb experts were deployed to the site to comb the area in search of other explosive devices.
A team from the Manshiet Nasser prosecution reportedly began investigations into the incident, and no suspects were announced yet.
Blasts at transmission towers have declined over the past few months, after a series of such attacks have incurred costs reaching millions of pounds since the 2013 ouster of President Mohamed Morsi.
In July 2015, the Egyptian Electricity Transmission Company (EETC) announced that a total of 214 power towers across Egypt have been targeted since June 30, 2013 events, costing the power sector with losses estimated at 150 million EGP ($19 million.)
After fixing the targeted towers or installing new ones, the Ministry of Electricity announced it had installed surveillance cameras at the towers nationwide as a measure to curb the attacks.
There are approximately 140,000 transmission towers across the country, Youm7 reported.