KYIV: Russia pummelled Ukraine's capital Kyiv with ballistic missiles early on Saturday, ‌injuring at least ⁠six ⁠people, officials said.A Reuters witness ​heard a series of powerful explosions ​in the city before the air alert was announced.The attack damaged ​a non-residential building ⁠in one district, ‌while smoke was ​coming ​from another and an ⁠office building was in flames as ​a result of the strike, ​the city military administration said on the Telegram messaging app.A transformer substation was on fire as well, said ‌Mayor Vitali Klitschko, while windows were blown out in ​some residential ​buildings.Also read | Indian Navy inducts Mahendragiri: What is the new 'combat ready' stealth frigateRussia has ⁠stepped up attacks in the capital in recent weeks. So far this month, ​strikes on Kyiv and the surrounding region have killed more than 60 people.