Diezmero is a ward in the outskirts of Havana, Cuba, located by the Carretera Central. It is under the administration of San Miguel del PadrĂ³n, a city municipality of Havana. Its demography spreads within about 2 square kilometers. From Wikipedia
A failure at a Havana substation triggered the fourth major blackout in six months, leaving millions without power as restoration efforts continue.