Police taking part in Operation Hawk, which is targetting cannabis factories, have made 93 arrests.
Officers have executed 28 warrants and found four cannabis factories in Bromley, seizing more than 2000 cannabis plants.
A firearm was also recovered in Sutton.
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Celebrations to mark St George's Day have started in Trafalgar Square with feasts and tea to be found in abundance.
People took to the streets of Brixton today to march against what they see as the 'gentrification' of the area.
A mother has issued an appeal for information after her "quiet" son who had a "lovely smile" was found dead in the Thames.