Police have arrested 11 people in Melbourne's north-west, seizing about one kilogram of the drug ice, guns, swords and almost $200,000 cash.

Arrests were made in Fawkner, Campbellfield, Brunswick West, Coburg, Pascoe Vale, Hadfield, Sunshine and Keilor on Wednesday morning. These came after investigations led by the Echo Taskforce and various police units.

Almost $200,000 cash was found in an Audi. Credit:Victoria Police

"Detectives have seized 11 firearms including handguns, approximately 1kg of methylamphetamine, two ballistic vests, tasers, swords, allegedly stolen property, more than $190,000 and an Audi R8," police said.