The OPP, London and Sarnia Police are calling it a major blow to the drug trade in southwestern Ontario.

The OPP-led Provincial Joint Forces Guns and Gangs Enforcement Team and Sarnia Police Service Vice Unit and officers from the London, Windsor, Brantford and Waterloo Regional Police, and RCMP executed two search warrants in two homes in London Jan. 26.

Investigators seized over 15 kilograms of fentanyl, over three kilograms of cocaine as well as quantities of MDMA, Xanax and hundreds of tablets of Oxycodone and Hydromorphone, all with a total street value of more than $3.1 million. 

Sarnia Police says 15 kilograms of fentanyl would have provided 7.5 million hits of the deadly drug which has become the number one problem in the city.

Police also seized prohibited ammunition, a handgun, and a replica handgun, cash, a laptop and cell phones.

Two London men were arrested.

Taymoor Pasha, 23, and Justin Taillefer, 28, are each facing six counts of possession for the purpose of trafficking and weapons charges. Pasha is also facing charges of failing to comply with bail conditions.

The accused were held for bail and remain in custody.

Sarnia police say allege the pair had been bringing large quantities of drugs into the city.