Multiple explosions rock Kharkiv in eastern Ukraine

Fighting near the Russian-occupied Zaporizhzhia nuclear power plant has alarmed the UN’s atomic energy watchdog, which on Friday doubled to four the number of its inspectors monitoring plant safeguards

Smoke rises after big explosions in Kharkiv, Ukraine (Francisco Seco/AP)

A series of explosions has rocked the city of Kharkiv in eastern Ukraine, sending towering plumes of illuminated smoke into the sky and triggering a series of secondary explosions.

There were no immediate reports of casualties.