Two men were discovered deceased at a highrise apartment complex on Falby Court in Ajax at around 3:40 a.m.
Police said a male in his 20s was also found dead in Bowmanville in the Courtice area east of Oshawa.
The news comes as Toronto deals with a spike in opioid-related deaths.
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They now have a $168.00 price objective on the biopharmaceutical company's stock, up from their prior price objective of $159.00. Sumitomo Mitsui Asset Management Company LTD boosted its position in Alexion Pharmaceuticals by 10.9% in the first quarter.
York Regional Police said two people were taken to hospital and their condition is unknown. One of the men was in his 30s and the other was in his 40s.
"These drugs have been rearing their heads in a lot of the calls that we receive as frontline officers", Tudos said, pointing to 12 non-fatal overdoses that Durham police officers responded to in the past two weeks.
Residents are also being urged to "not be afraid" to call 911 in an emergency and state what drugs were involved so first responders can provide the proper course of treatment.
Police say the three overdoses occurred over five hours.
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But people were returning to their daily routines after the national holiday on Tuesday, and some businesses were open. She said her team had seen no signs of "centralised or localised manipulation" of the voting process.
Many Canadian cities have grappled with drug overdose deaths in recent months, perhaps the most notable being Vancouver, which recorded 25 deaths and almost 600 overdose calls in June alone.
More than 1,000 people died of overdoses in British Columbia past year and the coroner says fentanyl was involved in many of those deaths.
"You never know what type of drugs are going to be mixed and what you're buying", he said, adding that there's no specific type of drug user that has emerged as predominantly at risk of overdose.
In light of the overdoses, officials in Toronto have vowed to speed up the opening of three planned safe injection sites and look at purchasing naloxone in bulk to get it into the hands of more people.
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The euro, which hit its highest since the start of 2015 on August 2, dipped 0.2 percent to $1.1753 in early trade in Europe. The kiwi later retraced some gains and last stood at $0.7350, staying above Wednesday's three-week low of $0.7309.