Two big pot busts have kept police busy in St. John's this week.

A 39-year-old man was arrested after RNC officers dismantled a marijuana grow op and seized fifty pot plants from a residence on Pond View Court, in the centre of the city on Wednesday.

The investigation is continuing and police expect to lay more charges.

The bust comes just one day after another sizeable seizure in the area.

On Tuesday, the RCMP discovered about 40 pounds of marijuana, as well as other drugs, including cocaine and methamphetamine at a different location.

Adam William Mattson, 28, and Stephen James McNeil, 24, are facing trafficking charges in connection to that arrest.