Spanish power company Red Eléctrica has ruled out a cyber-attack as the cause of Monday's mass blackouts, that left millions across Spain and Portugal without power.
Portuguese Prime Minister Luis Montenegro also said there was no indication that a cyber-attack was behind the outages.
Electric grids suffered two "disconnection events" - systems recovered from the first, but the second triggered the power cuts in both Spain and Portugal, with no indication of human error.
Power has now been fully restored in Spain and Portugal but travel disruption continues.

西班牙電力公司Red Eléctrica排除了網(wǎng)絡(luò)攻擊是周一大規(guī)模停電原因的可能性,停電導(dǎo)致西班牙和葡萄牙數(shù)百萬居民斷電。
葡萄牙總理路易斯·蒙特內(nèi)哥羅也表示,沒有跡象表明網(wǎng)絡(luò)攻擊是導(dǎo)致停電的原因。
電網(wǎng)經(jīng)歷了兩次“斷開事件”——系統(tǒng)從第一次故障中恢復(fù)過來,但第二次故障導(dǎo)致了西班牙和葡萄牙的停電,沒有跡象表明是人為錯誤。
目前,西班牙和葡萄牙的電力已經(jīng)完全恢復(fù),但交通中斷仍在持續(xù)。