Tegucigalpa , Honduras ( CNN ) -- At least 13 people died Thursday in a fire at a prison in northern Honduras , a fire official said . Among the dead was a prisoner who was decapitated , a fire official told reporters . Video shot at the scene showed thick clouds of smoke billowing from the building . The incident comes on the heels of another prison fire in Honduras that killed more than 350 people last month . The cause of the fire at the prison in San Pedro Sula was not immediately known . Police Chief Ricardo Ramirez said shots had been heard from inside . A fire last month in the central Honduran town of Comayagua killed 358 inmates . Two previous deadly prison fires have occurred in San Pedro Sula . In 2009 , 103 people were reported killed and in 2004 , 107 died . Honduran prisons have been criticized for being overcrowded places with poor conditions . The International Centre for Prison Studies , citing February 2010 figures , said that the country 's prisons were operating at 137.9 % of capacity .
One of the dead was decapitated , a fire official says . A fire at a different Honduran prison last year killed two inmates . The cause of the fire at the prison in San Pedro Sula was not immediately known .