An operation dismantled a criminal network linked to a string of armed robberies in Spring Valley, South C, Parklands, Runda and other parts of Nairobi.
Eight suspects were arrested including two women whom police say were tasked with ferrying firearms between Mombasa, Nairobi, Kisumu.
Detectives recovered four pistols, hundreds of stolen mobile phones, laptops and motorcycles believed to have been used in the robberies.
For weeks, residents of Nairobi's affluent estates have lived in fear as armed gangs struck with alarming precision before vanishing without a trace.
Now, police say they have uncovered one of the syndicate's most closely guarded secrets - that women were being used to transport firearms across the country because they attracted less suspicion.