Spanish airspace partially closed as Chinese rocket debris falls to Earth

Huge chunk of Long March 5B rocket launched four days previously re-enters atmosphere

A hefty chunk of the massive rocket used to deliver the third module of China's Tiangong space station has fallen back to Earth uncontrolled, triggering the closure of some of Spain's airspace and leading to hundreds of flight delays.

Four days after blasting off from southern China, a large part of the Long March 5B (CZ-5B) rocket broke up as it re-entered the Earth's atmosphere over the south-central Pacific ocean at 10.01 UTC, according to European and US space authorities.