Escalators at stations shut down as voltage fell, and train service was later restored but ran at longer intervals, according to the city administration.
Emergency power cuts followed Russian strikes, Ukraine's Energy Ministry said. Energy Minister and Deputy Prime Minister Denys Shmyhal said one of the facilities important to Kyiv was hit. Residents were asked to limit their electricity use.
Local residents reported that above-ground electric transport stopped and street lighting went out. In the Holosiivskyi, Pecherskyi, Svyatoshynskyi, Solomianskyi and Shevchenkivskyi districts, water pressure in the supply network fell because of the electricity problems, and some buildings were left without water.
Power also went out in the energy and tax policy committees of the Verkhovna Rada on Lypka Street, lawmaker Yaroslav Zheleznyak said.
Kyiv Mayor Vitali Klitschko told AFP that the capital had switched to a survival mode because of intensified Russian attacks. He said the water supply crisis could take on serious proportions, and that temporary power cuts had already begun in some districts.
Klitschko urged Kyiv residents who have friends or relatives outside the capital to consider moving away temporarily. He stressed, however, that he would not call for a full evacuation: in his words, the best scenario for Vladimir Putin is if residents leave and hand him empty cities and the country.
At least 19 people were injured and four residents killed in the past 24 hours as a result of Russian strikes on the capital, Klitschko said. Thirteen of the injured were hospitalized, two of them in serious condition.