The Long March 7A, one of China's most frequently flown rockets, exploded roughly a minute and a half after lifting off from the Wenchang Space Launch Site on Monday evening local time. The payload, believed to be a military communications satellite, was not disclosed by officials, and Chinese state media had made no comment on the incident by Monday night. The failure is notable because China's state-run launch programme has built a strong safety record in recent years, now averaging more than 50 launches annually with only a handful of failures.

Footage showed the rocket's first stage exploding about one minute and twenty seconds into flight, potentially triggered automatically if the vehicle strayed off course. Because China's space programme operates with limited transparency, the precise cause may never be confirmed, but if it involved the YF-100 first-stage engine, the implications could be significant, since that engine powers as many as nine different Chinese rocket types, including newer variants such as the Long March 10. A failure linked to the YF-100 could also jeopardise the planned Chang'e 7 lunar mission, due to launch on a Long March 5 in around two weeks, as that mission is central to China's efforts to explore the Moon's resource-rich South Pole region ahead of NASA.