Pittsburgh police are warning addicts after paramedics responded to five heroin overdoses in five hours, including one fatality _ and say three appear to be from the same batch of drugs.
Police clarified earlier comments that all the overdoses may be linked by saying Wednesday that only three of the overdoses _ none fatal _ involved drugs sold in bags stamped ``predator'' with a shark picture on them.
No markings were found on the "stamp," or individual dose, bag at a fourth overdose. And bags with different markings were found at the scene of the fatal overdose.
Police don't know whether the "predator" heroin is especially potent or had been laced with another drug _ like fentanyl _ that can cause overdoses.
Copyright The Associated Press
