State officials say three prisoners have been killed and six wounded in a gunfight at a prison in the violent northern Mexico border state of Tamaulipas.

The state attorney-general and head of state police said the fight erupted Wednesday afternoon in the prison in the city of Reynosa. No prisoners escaped, officials say.

After the gunfight, state officials entered the cellblock and found two dead and seven wounded, one of whom died after being hospitalized. The officials said in a written statement that soldiers and federal police had helped restore order in the prison. The statement provided no further details.

Mexico's prisons are plagued by corruption and violence, including a gang fight in the state of Nuevo Leon that killed 44 prisoners in February.