Train services between Gul Circle and Tuas Link were temporary closed between 16 and 19 November 2017 following a collision that happened at Joo Koon. On 20 November 2017, train services from Gul Circle to Tuas Link were resumed; however, train services between Joo Koon and Gul Circle will be suspended till mid-2018 to facilitate maintenance work on signalling devices.