Nearly 70 people were killed in Japan after one of the most powerful typhoons hit the country in six decades, according to national broadcaster NHK on Monday, as the search for survivors continued for the third day.

The broadcaster said that 15 people were still missing after the deadly storm, which slammed into Tokyo and surrounding areas on Saturday night.

Rescue efforts could be hampered as rain is forecast in the affected areas, authorities have asked people to exercise caution amid increased risk of flooding and landslides following record rainfall due to the passage of the typhoon.

The passage of Hagibis – the 19th typhoon of the season in the Pacific and one of the most powerful to hit Japan in decades – caused record rainfall in some areas of the archipelago and heavy rains in large parts of the country.

The rains also caused numerous dams located along at least 21 rivers in the country to collapse, according to the Ministry of Land, Infrastructure, Transport and Tourism.

Earlier on Friday, hundreds of flights and trains were cancelled in Japan ahead of the arrival of super typhoon Hagibis, considered one of the most powerful storms in the Pacific this season.

Hagibis made landfall on the main Japanese island of Honshu around 7 pm on Saturday, with wind gusts of up to 216 kilometres per hour (134 miles per hour). A magnitude 5.7 earthquake shook Tokyo shortly after.