Authorities administered Narcan but failed to revive two people found unresponsive at BART stations in Oakland and San Francisco on Wednesday night.
The first death was reported about 6:20 p.m. at the Fruitvale Station in Oakland, where officers gave an unresponsive man a dose of Narcan, or naloxone, which is used to reverse an opioid overdose. Medical crews took over life-saving measures but he died at the scene, BART police said.
The second death was reported about 11:30 p.m. at the Powell Street Station in San Francisco, where officers provided two doses of naloxone to an unresponsive man. Medical crews provided life-saving measures but the man also died.
There were no signs of foul play in either death and both are under investigation.
BART police also provided Narcan in a third incident, to a man suffering from an apparent drug overdose at the Richmond Station platform about 1:20 a.m. Thursday. The man regained consciousness after three doses and was taken to a hospital for treatment, police said.
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