A major drug bust in St. John's is raising awareness about a dangerous synthetic street drug known as 'bath salts'.

Six men were charged in St. John's on Tuesday with conspiracy to traffic in drugs, and four of them have been allegedly connected to the drug.

The RCMP said the drug started showing up in Newfoundland and Labrador in 2010 — adding the 25 kilos found this week in the gas tank of a pickup is a significant bust.

The arrests and charges followed a nine-month RCMP investigation police called Operation Baffle. At least four of the six men arrested are from Newfoundland and Labrador.

Police have charged several people with conspiracy to traffic MDVP – otherwise known as bath salts – Alex Prefontaine, Quebec; Rodney Noseworthy, Mount Pearl; Charlie Noftall, St. John's and Tan Tai Huynh, Quebec.

The two local men have been granted bail, and the two from outside the province have a bail hearing pending.

Police believe the men were intending to mislead their customers, selling bath salts as cocaine.

The street drug is 10 times stronger than cocaine, and can kill those who take it.