The new high-speed rail between the mainland and Hong Kong has made about 880,000 trips since going into use two weeks ago, the rail service operator MTR Corporation said on Sunday.

During the National Day holiday, namely from September 28 to October 7, the high-speed rail served a total of around 650,000 passenger trips between Hong Kong and different cities in the Chinese mainland.

The cumulative number of tickets sold, including those sold in the pre-sale period, has exceeded one million.

"The high-speed rail provides comfortable and convenient cross-boundary train services for passengers travelling between Hong Kong and mainland cities," MTR CEO Lincoln Leong said, adding that "train services have been generally smooth since service commencement."

The cross-boundary high-speed rail connects Hong Kong with 44 stations in the Chinese mainland without interchange, including six short-haul stations and 38 long-haul stations.

The National Day holiday came shortly after the opening of the high-speed rail and was a great challenge for the new railway, MTR Operations Director Adi Lau said, adding that MTR set up a special task force operating every day during the early days of operations at Hong Kong West Kowloon Station to respond immediately to different issues, including optimizing passenger flow management and queuing arrangements.

"As we are still in the early days of operations, there may still be teething issues which may cause some inconvenience to passengers. We will continue to listen to passengers' views and seek continuous improvements. Our aim is to provide passengers with high quality high-speed rail service," said Lau.