<ul data-eligibleForWebStory="false">KTM will be upgrading the sewerage system of the rail track between Port Klang and Batu Tiga stations on Sunday, July 13.There will be no KTM Komuter train service from Port Klang to Subang Jaya on that day.Alternative shuttle bus services will be provided at affected stations to the Subang Jaya station.The bus service will start from 6.30 am at stations like Port Klang, Telok Gadong, Klang, Bukit Badak, Padang Jawa, Shah Alam, and Batu Tiga.