Updated

The federal prosecutor's office says the director and 11 officials at a prison in northern Mexico have been charged with helping 17 inmates escape through a tunnel starting in the prison's laundry room.

The prosecutor's office alleges the prison officials in Reynosa, Tamaulipas, across the border from Texas, helped the inmates escape through a hatch hidden underneath a washing machine. The tunnel emerged outside the prison's grounds.

The officials were also charged Friday with gang involvement in connection with Tuesday's jailbreak. They were brought before a judge who will decide their case.

Security at state prisons is notoriously lax. Jailbreaks are common and inmates are often found to be directing criminal operations from behind bars.