Fully loaded truck crashes into van on a cross-country highway near the town of Khairpur, about 1,040 km south of the capital, Islamabad.
Duterte's spokesman Harry Roque says there is "still no new policy on this." Roy Cimatu, the new Environment and Natural Resources secretary, seeks to remove the ban.
New Caledonia's civil security agency made no plans to evacuate coastal places immediately.
The Indian Medical Association urged the city's biggest running race to be called off to protect runners and volunteers from exposure to high levels of deadly particulate matter that lodge deep in the lungs.
Ledezma is the best-known detained opponent of leftist President Nicolas Maduro after Leopoldo Lopez, and had spearheaded street protests against the president in 2014.
Hundreds of supporters of a religious party have been blocking the route for nearly 10 days, demanding minister of law be sacked for what they say committing a blasphemy.
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