Six prisoners escape from a penal colony in Lipetsk Oblast using an underground passage.

The escape occurred at night, with the prisoners digging an underground passage to freedom.

Six prisoners have escaped from a penal colony in Lipetsk Oblast, Russia, using an underground passage. The escape occurred at night, with the prisoners digging an underground passage to freedom. The prisoners used tools to dig the passage, which was approximately 10 meters long. The prisoners then used the passage to escape the colony. The prisoners have not yet been apprehended.

The prisoners had been serving sentences for various crimes, including murder and robbery.

The prisoners who escaped had been serving sentences for various crimes, including murder and robbery. The prisoners had been serving their sentences at the colony for several years. The colony is located in a remote area of Lipetsk Oblast. The escape is the first to occur from the colony in several years.

The authorities are investigating the escape and searching for the prisoners.

The authorities are investigating the escape and searching for the prisoners. The authorities are concerned that the prisoners may be armed and dangerous. The authorities have set up checkpoints in the area and are conducting searches. The authorities have also asked for the public's help in locating the prisoners.

The escape has raised concerns about the security of the penal colony.

The escape has raised concerns about the security of the penal colony. The colony is supposed to be one of the most secure in Russia. The escape has led to calls for an investigation into the security of the colony. The authorities have said that they will be reviewing the security of the colony and taking steps to prevent future escapes.