MULTAN, Pakistan (AP) — Pakistan's prime minister cut short a trip abroad to rush to the side of victims of a massive fuel tanker fire as authorities on Monday raised the death toll to 157.

The truck, carrying some 25,000 liters (6,600 gallons) of gasoline, was traveling from the southern port city of Karachi to Lahore when the driver lost control and crashed on a highway outside the town of Bahawalpur early on Sunday.

Alerted by an announcement over a loudspeaker at a local mosque, scores of villagers rushed to the scene to collect the spilled fuel. When the fire broke out, the villagers were...