WATCH | Chief Inspector Scott Small explains that a package that exploded in a Philadelphia apartment contained a "device" that was intended to injure someone.
One person was injured when a manila envelope stuffed with a bomb went off in a downtown Philadelphia apartment complex Tuesday morning.
Police said the bomb went off around 4 a.m. when a man opened the package thinking an inhaler he ordered by mail was inside.
The 62-year-old victim sustained hand and chest injuries in the explosion. His name has not been released.
The victim opened the package near the stove in the kitchen of his apartment, which initially led officers to believe that the blast was accidental and possibly caused by an inhaler getting too close to the heat.
Philadelphia Police Commissioner Richard Ross told reporters that the package was "target specific." However, authorities said they don't believe the device was sent through the mail because it had a barcode on it.
"The important thing to know right now is we don't know whether this was an explosive device intentionally mailed at this house to explode and cause injuries or this was just some sort of accidental explosion of some chemical or of some medicine that is normally delivered to this 62-year-old victim," Chief Inspector Scott Small of the Philadelphia Police Department told reporters.
The victim was taken to Thomas Jefferson University Hospital and was listed in stable condition.
Residents of nearby apartment buildings were evacuated Tuesday morning after the explosion happened.
The Associated Press contributed to this report.
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