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Police have arrested three people in a recent drug investigation, and are asking for the public's help to find the fourth suspect.
On Tuesday, officers conducted a search warrant at a home near Kenmir Avenue and Tanbark Road in Niagara-on-the-Lake.
Officers say one of the suspects fired a gun at officers as they were entering the residence.
The search turned up a firearm and over 200 grams of fentanyl, with a street value of about $61,000.
The investigation the led detectives to a home in St. Catharines.
At that residence, over 44 grams of fentanyl was found, with a street value of over $13,000.
Over $84,000 in cash was seized.
Police arrested 34 year old Rohan Chand of St Catharines, and 28 year old Mashie Harper and 34 year old Pietre Cleghorn, both of Niagara-on-the-Lake.
Meanwhile, 27 year old David McComb of St. Catharines is wanted on a Canada-wide warrant.
Anyone with information is asked to call police at (905) 688-4111, ext. 1009346.