BEIJING — At least 100 tourists, including 38 Vietnamese nationals, were trapped in northwest China after a landslide cut off a road amid weeklong storms that have flooded rivers and triggered mudslides, killing at least 86 people, state media said Saturday.

The tourists got trapped Friday night in the northwest province of Gansu after a landslide cut off traffic, China's official Xinhua News Agency said. They were en route to a nature reserve in Sichuan province, which has been hit the hardest by the storms, and road repair work was under way in an effort to free them, the report said.

Sichuan has reported at least 48 storm-related deaths over the past week. A massive mudslide that struck a scenic resort outside the city of Dujiangyan in Sichuan on Wednesday killed 43 people, the ruling Communist Party's People's Daily said Saturday.

An entire hillside collapsed onto clusters of holiday cottages where city dwellers escape summer heat, a survivor told Xinhua.

Flooding in Sichuan was the worst in 50 years for some areas, with more than 220,000 people forced to evacuate.

Mudslides and flooding are common in China's mountainous areas, killing hundreds of people every year, but in some areas the current floods are already the worst in half a century.

In the northwest province of Shaanxi, 23 people died in landslides or house collapses. At least 12 workers were killed in the northern province of Shanxi when a violent rainstorm collapsed an unfinished coal mine workshop. Another three people were drowned in a car in Hebei province outside Beijing.

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  • This picture taken on July 9, 2013 shows heavy flood waters sweeping through Beichuan in southwest China's Sichuan province.(AFP/Getty Images)

  • This picture taken on July 9, 2013 shows residents walking along a flooded street in a district in Guanghan, southwest China's Sichuan province. (AFP/Getty Images)

  • This picture taken on July 9, 2013 shows rescuers looking for victims as heavy flood waters sweep through Beichuan in southwest China's Sichuan province. (AFP/Getty Images)

  • This picture taken on July 9, 2013 shows heavy flood waters sweeping through Beichuan in southwest China's Sichuan province. (AFP/Getty Images)

  • Rescuers evacuate residents from flood-hit areas on July 9, 2013 in Chengdu, China. (ChinaFotoPress via Getty Images)

  • Residents are evacuated through a flooded street by an excavator in Guanghan city in southwestern China's Sichuan province Tuesday July 9, 2013. (AP Photo)

  • This picture taken on July 9, 2013 shows a resident walking along a flooded street in Guanghan, southwest China's Sichuan province. (AFP/Getty Images)

  • This picture taken on July 9, 2013 shows heavy flood waters sweeping through Beichuan in southwest China's Sichuan province. (AFP/Getty Images)

  • Rescuers evacuate residents from flood-hit areas on July 9, 2013 in Chengdu, China. At least one person was killed and 15 others missing after severe rainstorms hit Sichuan province on Monday. (ChinaFotoPress via Getty Images)

  • In this image taken by mobile phone camera, what remains of the Qinglian bridge that was swept away by heaving flood waters is seen in the city of Jiangyou in the western province of Sichuan on Tuesday, July 9, 2013. (AP Photo)

  • This picture taken on July 9, 2013 shows rescuers looking for victims as heavy flood waters sweep through Beichuan in southwest China's Sichuan province. (AFP/Getty Images)

  • The old town ruins of Beichuan, which was hit by an 8.0-magnitude earthquake in May 2008, is submerged by flood water on July 9, 2013 in Beichuan, China. (ChinaFotoPress via Getty Images)

  • This picture taken on July 9, 2013 shows a man standing in his flooded shop in in Guanghan, southwest China's Sichuan province. (AFP/Getty Images)

  • This picture taken on July 7, 2013 shows people walking through a flooded street in Wuhan, central China's Hubei province after a heavy storm. (STR/AFP/Getty Images)

  • Ruins of the collapsed Panjiang bridge, also called Qinglian bridge, are seen in the flooded river in Sichuan's Jiangyou city, southwest China's Sichuan province on July 9, 2013. (STR/AFP/Getty Images)

  • This picture taken on July 9, 2013 shows heavy flood waters sweeping through Beichuan in southwest China's Sichuan province. (AFP/Getty Images)