At least three people have been killed in Yemen's capital Sanaa when an armed drone crashed in a busy neighbourhood after being shot down, Houthi officials said. The health minister in the rebel Houthi administration that runs Sanaa said another three people were injured on Monday when the drone landed in a commercial area, the official news agency reported. In a statement, the Houthis said that their air defence system downed the drone and that it belonged to the Saudi-led coalition, which backs the Yemeni government in the country's war. "Our air defences downed a Chinese-made CH4 armed spy plane belonging to the Saudi air force with a surface-to-air missile," Houthi military spokesman Yahya Saree said on Twitter. Before a while,Our air defenses shot down a Chinese-made armed spy plane CH4 belonging to the Saudi Air Force with a locally-made surface-to-air missile, while violating the truce and carrying out hostile acts in the airspace of the capital, Sana'a.