The MTR on Sunday said no train services would run between Hung Hom Station and Mong Kok East on the East Rail Line for the whole of the day.
The rail company said this was due to track works for the cross-harbour section of the East Rail Line.
It said a free shuttle bus service was operating between Hung Hom and Kowloon Tong but that this service did not include a stop at Mong Kok East.