It started as a fun day at a San Francisco park for little Senna Matkovic with his nanny and twin brother, Antun.

First responders arrived at a home on the 800 block of North F Street at 11:14 a.m. and found the one-year-old had been exposed to suspected fentanyl ... Narcan to the baby and it was revived.

in baby formula, and even poisoning police officers who are near it. Many media outlets push unsubstantiated rumors about this phantom menace, stoking fears that fentanyl could strike any person ...

Members of the New York Drug Enforcement Task Force and Office of the Special Narcotics Prosecutor found around 20,000 fentanyl pills along with 3 kilograms of powdered fentanyl in a cardboard ...