MEXICO CITY — The twin storms that tore through the country this week, unleashing rains that sent mud crashing down hillsides, buckling roads and flooding coastal cities, have renewed criticism that corruption and political shortsightedness made the damage even worse.

The death toll rose to 101 late Friday, but was expected to climb higher as rescue workers reached by air isolated mountain villages that had been cut off by landslides along the Pacific Coast. Soldiers continued their search Friday for 68 missing people in La Pintada, a coffee-growing village in Guerrero State where a hillside had given way and a river of mud poured over the town’s center.

“Anywhere you fly over you will see a number of landslides that are truly shocking,” Interior Minister Miguel Angel Osorio Chong said Friday.

The storms battered both the Pacific and Gulf Coasts starting last weekend, a rare double hit from tropical systems at the same time. But experts said officials had not learned from earlier hurricanes and had failed to prepare for disaster, which magnified the losses this time.