Mexican authorities scrambled today to clear landslides blocking the only roads out of Acapulco while tourists lined up to be airlifted out as the rain-drenched country braced for new storms.
At least 57 people have died in Mexico since major storms hit opposite coasts this week, the first double onslaught in 50 years, unleashing floods and mudslides that still affect much of the country.
New threats emerged as the US National Hurricane Center warned that a tropical cyclone could form on the east coast while Manuel, which had dissipated after making landfall on Sunday, regenerated into a tropical storm south of Baja California.
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The state of Guerrero, where Acapulco lies, has been the hardest hit by the deluge, registering 27 deaths while 15,000 people have been placed in shelters.
President Enrique Pena Nieto warned that the roads would remain shut until at least Friday or Saturday.
"One of our major priorities is opening traffic between Acapulco and Mexico City," Pena Nieto told reporters after visiting the former haunt of Hollywood stars.
He said opening the roads is urgent "not only for people who have to travel on that road and have to go home, but also because it is obviously an important supply route."
With the airport submerged in dark water, the military and commercial carriers set up an airlift that has flown around 3,000 rain-weary holidaymakers to Mexico City since yesterday.
The military has brought 60 tonnes of supplies and 8,000 liters of water to Acapulco, Defense Secretary Salvador Cienfuegos said.
Helicopters will deliver food in mountain ares and look for people who need to be evacuated.
In Acapulco, more than 40,000 Mexican and foreign beachgoers have been marooned in the flooded city for five days, with more than half of Acapulco covered by floods.