The fourth explosive device was found by law enforcement officers in Dnipropetrovsk before it exploded, which helped prevent more casualties, a law enforcement source told Interfax.
"The explosive device was found and blew up before the arrival of bomb disposal experts," the source said.
The area where it was found was temporarily cordoned off, he said.
It was reported that four explosions rocked Dnipropetrovsk on Friday. Regional prosecutors have launched an inquiry into the terror attack.
Web links to Kyiv Post material are allowed provided that they contain a URL hyperlink to the
www.kyivpost.com material and a maximum 500-character extract of the story. Otherwise, all materials
contained on this site are protected by copyright law and may not be reproduced without the prior
written permission of Public Media at email@example.com
All information of the Interfax-Ukraine news agency placed on this web site is designed for internal
use only. Its reproduction or distribution in any form is prohibited without a written permission of