A Federal Bureau of Prisons worker at a high-security penitentiary in California died on Friday after coming into contact with an “unknown substance” while working in the mailroom.

A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in Atwater, California, according to a bureau spokesperson.

A mailroom worker at Atwater federal prison died Friday. Investigators suspect contact with fentanyl.

A federal prison inmate and two other people are facing charges of conspiring to mail drugs to a penitentiary in California where a mailroom supervisor died last week ...

A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in Atwater, California, according to a bureau spokesperson.

A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in Atwater, California, according to a bureau spokesperson.

Even as the Bureau of Prisons struggles with short staffing, chronic violence and crumbling infrastructure, Trump is counting on the agency to fulfill his vision of rebooting Alcatraz.

A Federal Bureau of Prisons worker at a high-security penitentiary in California died on Friday after coming into contact with an “unknown substance” while working in the mailroom.

The mailroom supervisor at a federal prison in Atwater died Friday, as a result of exposure to mail saturated in an unknown substance. A second worker was also exposed and hospitalized, but ...

A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in Atwater, California, according to a bureau spokesperson ...

A Federal Bureau of Prisons employee died after coming into contact with an unknown substance in the mailroom at the U.S. penitentiary in Atwater, California, according to a bureau spokesperson.

A mailroom worker at Atwater federal prison died Friday. Investigators suspect contact with fentanyl.