4 inmates escaped from a minimum security prison in Virginia

A minimum-security federal prison in Hopewell, Va., discovered that four inmates were missing early Saturday morning.

4 inmates escaped from a minimum security prison in Virginia

Four inmates from a low-level federal prison facility in Hopewell, Va., were found to be missing early Saturday morning.

4 inmates escaped from a minimum security prison in Virginia

The Federal Bureau of Prisons said the inmates, Corey Branch, 41, Tavares Lajuane Graham, 44, 

4 inmates escaped from a minimum security prison in Virginia

Lamonte Rashawn Willis, 30, and Kareem Allen Shaw, 46, were found to be missing from 

4 inmates escaped from a minimum security prison in Virginia

the Federal Correctional Complex Petersburg's satellite camp at approximately 1:45 a.m 

4 inmates escaped from a minimum security prison in Virginia

The U.S. Marshals Service, the FBI and other law enforcement agencies were notified of the incident.  

4 inmates escaped from a minimum security prison in Virginia

An internal investigation has been launched, according to the Bureau of Prisons news release. 

4 inmates escaped from a minimum security prison in Virginia

The bureau didn't immediately respond to questions from NPR about how the four men escaped and if they did so together.

4 inmates escaped from a minimum security prison in Virginia

Branch was serving 160 months for possession of fentanyl with the intent to distribute as well as felony possession of a firearm.