An unmanned Russian cargo spacecraft plummeted to Earth Saturday with parts that didn't burn during re-entry plunging into the Pacific Ocean, officials said.

Officials at Mission Control said fragments of Progress M-14M ended its mission by coming down in a remote area of the Pacific at 6:39 p.m. Moscow Time and sank, RIA Novosti reported.

The spacecraft had left the International Space Station April 19 and conducted several days of experiments before meeting its demise, the Russian news agency said.

The Russian television network RT reported most of the spaceship, which carried more than a ton of waste from the space station burned up in the atmosphere.

RT said another spacecraft carrying three astronauts who had spent six months at the space station touched down in Kazakhstan's steppe Friday.