Storm damage seen Sunday in Hong Kong. City officials raised the storm alert to T10, its highest level, as Typhoon Mangkhut landed in Hong Kong.
 Lam Yik Fei/Getty Images
  • Typhoon Mangkhut has crossed into mainland China after moving through Hong Kong, where it caused chaos and extensive damage.
  • Videos posted by residents showed the incredible power of the typhoon, which caused trucks to flip over and tore scaffolding off the sides of buildings.
  • The scenes in Hong Kong were downright apocalyptic, as the normally bustling city was effectively shut down as the storm battered the island.

Typhoon Mangkhut has crossed into mainland China, where it is expected to continue weakening after cutting a deadly swath across the Philippines and causing chaos in Hong Kong.
At least 64 people were killed in the Philippines, according to the Associated Press, and the normally bustling city of Hong Kong was effectively shut down amid the storm.
Mangkhut has been downgraded to a severe typhoon, having approached the coast as a Category 5 storm — the strongest possible — with winds of up to 167 mph.
Hong Kong airport, one of the most important global transit hubs, was closed with more than 500 flights canceled and some 100,000 passengers affected, according to a Bloomberg report. The airport is operating Monday, but flights across Asia are expected to be affected for some time.
Casinos in the gambling center of Macau were shut down, and some 20,000 homes were left without power, the South China Morning Post reported.
Authorities in Hong Kong issued a signal 10 — the city's strongest storm warning — as the storm hit the busy financial center.
Videos posted by residents showed the incredible power of the typhoon as it caused buildings to sway, sucked reams of documents out of shattered office windows, tore down scaffolding, and pushed walls of water into low-lying parts of the island.
Here are some of the videos.

The storm smashed windows on office buildings and sucked out documents

Winds tore bamboo scaffolding away from buildings

A few people either couldn't make it to shelter or ignored the warnings to stay inside

There were astonishing videos of the storm surge inundating the island

There was also a huge storm surge at Shenzhen, a mainland city close to Hong Kong. This shows the water crashing into the ground floor of the Sheraton hotel in the city

The winds were strong enough to roll trucks

In one positive report, more than 300 dogs in a shelter were reported safe despite damage to the building housing them