Nine held after a sub-machine gun is found in house raid Published duration 12 April 2014

image copyright Metropolitan Police image caption The sub-machine gun is capable of shooting 850 rounds a minute

Nine people were arrested when a sub-machine gun, 70 rounds of ammunition and a large quantity of cannabis were found at a house in south London.

Police officers executed a firearms warrant at a house in Commonside East, Mitcham, just before midnight on Friday.

Six men and three women aged between 18 and 54 remain in custody at various south London police stations.

A Met spokesman said one woman was Tasered during the raid.

All nine people have been arrested on suspicion of firearms and drugs offences

Officers also found £3,000 in cash and two magazine clips.

Det Supt Damian Allain of the Trident Gang Crime Command said: "This is an extremely dangerous weapon capable of shooting 850 rounds a minute.