Parts of Accra and its environs were left in darkness Wednesday following an explosion at the Dzorwulu substation of the Electricity Company of Ghana (ECG).

The explosion occurred around 7:30pm on Wednesday.

Head of the Public Relations of the Ghana Grid Company (Gridco), Albert Quainoo said on the Super Morning Show Thursday was unable to tell precisely when power will be restored to the affected areas.

He explained that a technical problem with one of the power lines feeding into the substation at Dzorwulu had been the cause of Wednesday evening's explosion.

He said due to the fault, GRIDCo is able to transmit only 54MW of power as against over 200MW needed for Accra alone.

Myjoyonline.com's checks reveal that Achimota, Dzorwulu, Osu, Adenta, Madina, parts of Kasoa, Abeka and Tema are the most affected areas.