Beijing, October 24 (QNA) - China launched two new groups of remote-sensing satellites Saturday from the Jiuquan Satellite Launch Center in the country's northwest.

The Yaogan-53 group's satellites 07, 08 and 09 and the Yaogan-56 group's satellites 19, 20 and 21 lifted off aboard a Long March-4B carrier rocket at 3:25 a.m. Beijing time and successfully entered their preset orbits.

The satellites will primarily be used for scientific experiments, land and resource surveys, crop-yield estimation, disaster prevention and mitigation.

The launch marked the 673rd flight of the Long March rocket series. (QNA)