Updated

A new Human Rights Watch report calls Mexico's anti-drug offensive "disastrous" and cites 249 cases of disappearances, about 149 of which include evidence of being carried out by the military or law enforcement.

The report says the forced disappearances follow a pattern of security forces detaining people without warrants at checkpoints, homes, workplaces or in public. When families ask about their relatives, security forces deny the detentions or instruct them to look elsewhere.

The report released Wednesday accuses former President Felipe Calderon of ignoring the problem, calling it "the most severe crisis of enforced disappearances in Latin America in decades."

Mexico's Interior Department oversees domestic security and it declined to make an immediate comment about the report.