Cairo (AFP) - Three small bombs exploded on Sunday in a western Cairo suburb, targeting an electricity transmission pylon and cutting power to the area for nearly an hour, a security official said.
Militants have stepped up attacks in Egypt, mostly against the security forces, since the army ousted Islamist president Mohamed Morsi in July 2013 and the new authorities launched a deadly crackdown on his supporters.
"Three bombs planted near an electricity transmission pylon... in the 6th of October suburb exploded on Sunday at dawn," the security official said.
"The attack left no casualties, but electricity was cut to the neighbourhood for an hour before the pylon was repaired."
Militant groups say their attacks are in retaliation for the government crackdown on Morsi supporters, in which more than 1,400 people have been killed, at least 15,000 jailed and about 200 sentenced to death in speedy mass trials.
The attacks have killed almost 500 police and soldiers since Morsi's overthrow, the government says.