A double-decker bus lost control and crashed in a Hong Kong suburb on Saturday evening, killing 19 people and injuring dozens more, authorities in the southern Chinese city said, Press TV reported.
Local media reports said the bus tipped over, and quoted passengers as saying it was full and traveling very fast.
Police said they are investigating and arrested the driver on dangerous driving charges.
The crash left 15 men and four women dead and sent more than 60 others to a hospital.
The South China Morning Post newspaper said it was the Asian financial center's deadliest traffic accident since a 2003 bus crash killed 21 people.