Six victims from three incidents had to be treated at local hospitals.
One person died while another is in grave condition.
Police are on the lookout for the suspects who distributed the deadly narcotics.
The Yonkers Police Major Case Squad and Narcotics Unit, in collaboration with local law enforcement resources, are actively investigating these incidents.
They say, Community members are advised NEVER to ingest unknown or un-prescribed controlled substances, especially illegal street drugs - the results can be fatal.
If anyone has any information regarding these incidents, they are asked to call the Yonkers Police Narcotics Unit at (914) 377-TIPS (8477). All calls may remain anonymous and confidential. If you or someone you know has a substance abuse problem, please reach out for help - call (914) 964-8000.
Kansas City, Missouri, police said they are seeing an increase in the number of overdose deaths in teens who take pills laced with the deadly opioid fentanyl.