Officers raided 15 properties overnight linked to organised crime groups resulting in the seizure of drugs, firearms, weapons, and cash.
Two addresses were also served Closure Notices to prevent further offending.
Police said the coordinated operation targeted gangs exploiting vulnerable people and disrupting criminal networks across London.
Officers were acting on intelligence that people within the addresses were involved in serious criminality, such as drug dealing, serious violence, and cuckooing.
Inspector Kevin Chambers, who led the operation, said: “The operation unfolded with the power of over 300 officers working in unison — police constables, rapid‑entry specialists, dog units, the Territorial Support Group and custody teams — a coordinated show of strength and precision.
“This is a significant step in cutting the supply chains and criminal networks that inflict serious violence, fear, and intimidation across our city.
“Our Safer Neighbourhood Teams are ramping up activity – carrying out more manhunts and seizing more illegal cash, guns, and ammunition- because this criminality tears families apart. I hope this activity shows our relentlessness in taking the fight to those responsible.
“We are committed to community crime fighting and targeting offenders who seek to cause harm or exploit vulnerable people. In addition to today’s activity, we have undertaken several pre-planned operations to target criminality and reduce violence and will continue to do so.”
The Met released new figures last month which showed its sustained crackdown on violence is working, with serious violence in the capital down and homicides at a record low.
Detective Superintendent Ian Cameron added: “Drug networks fuel serious violence and today’s coordinated operation disrupts those drivers head‑on. We’re protecting vulnerable people who are exploited within these networks, acting on the concerns of our communities and staying firmly committed to safer streets.”
Serious and organised crime groups were disrupted over 21,200 times in 2025, an increase of 63% compared to the previous year. While 3,570 guns and weapons were seized. These disruptions are getting drugs and weapons off the streets and putting offenders before the courts.
Police Sergeant James Peppitt added: “I am tremendously proud that our Safer Neighbourhood Teams were supported by the wider Met today. Together we are fighting community crime and tackling the issues that matter most to our communities.
“We remain grateful to the community for all their support and hope today shows local residents that we are listening to their concerns and taking appropriate action”
The overnight activity in Mitcham aims to further protect communities from these dangerous groups and drive down serious violence.
If you have any concerns about criminal activity in your local area then please come forward to police, you can dial 999 in an emergency or 101 to report a crime. You can also call Crimestoppers on 0800 555 111 to remain anonymous.
