Multiple explosions rock eastern Ukraine city of Kharkiv

A series of explosions rocked the eastern Ukraine city of Kharkiv early Saturday, sending towering plumes of illuminated smoke in the sky and triggering a series of secondary explosions.
The blasts came as Russia concentrated attacks on Friday in its increasingly troubled invasion of Ukraine on areas it illegally annexed, while the death toll from earlier missile strikes on apartment buildings in the southern city of Zaporizhzhia rose to 14.
It was not immediately clear what caused the Kharkiv blasts or what was hit.