The MTR Corporation said on Sunday that it was closing more stations after further attacks by protesters.
Protesters have targeted the railway company regularly in recent months, accusing it of siding with police, and the MTR said several of its stations had been firebombed, including Mong Kok.
The company said that on the Tsuen Wan Line, services between Mei Foo and Central were suspended.
On the Kwun Tong Line, it said the stations from Yau Ma Tei to Prince Edward along with Lok Fu are closed.
On the West Rail Line, East Tsim Sha Tsui and Austin stations were closed. The MTR closed them earlier in the day ahead of the Kowloon protest march.
The MTR has also said that most train services will end at 10pm on Sunday to allow more time for repairs.
From 1pm on Sunday, the Airport Express has only been stopping at Hong Kong Station and the Airport.
Separately, the MTR said 19 high-speed trains from West Kowloon were cancelled due to a signalling failure. It said it would refund passengers within the next 20 days and called on them to use other cross-border lines.
Last updated: 2019-10-20 HKT 18:39