July 29 (Reuters) - Ukrainian soldiers were observed using North Korean rockets that they said were seized by a "friendly" country before being delivered to Ukraine, the Financial Times reported on Saturday. The North Korean weapons were shown by Ukrainian troops operating Soviet-era Grad multiple-launch rocket systems near the destroyed eastern city of Bakhmut, site of lengthy brutal fighting, the report said. The North Korean weapons were shown by Ukrainian troops operating Soviet-era Grad multiple-launch rocket systems near the destroyed eastern city of Bakhmut, site of lengthy brutal fighting, the report said