Cracks have been found in 19 more components of East Rail trains, the KCRC said yesterday, bringing to 233 the number of defective components. They were found in welds of the main components of the train underframe and the supports of the components. The discovery came as Secretary for Environment, Transport and Works Sarah Liao Sau-tung led a group of government officials and legislators on a visit to the KCRC's Ho Tung Lau depot at Fo Tan in a show of support for frontline staff. They gave boxes of fruit to workers. 'The community has been very concerned with the safe operation of East Rail since the mounting problem of underframe equipment,' she said. 'Frontline staff must have felt tremendous pressure on them. Legislators and the government appreciate staff have been working very hard to maintain a reliable service and safety.' In a separate development, about 1,000 MTR passengers were forced to change trains at Kowloon Tong and had their journeys held up after the signalling system of their Tiu Keng Leng-bound train malfunctioned at about 6.30pm. And there were two Light Rail accidents yesterday. The first happened at about 9am as a Light Rail train approaching Siu Lun station in Tuen Mun hit the back of another at the platform. The trains continued their journeys five minutes later and services were not affected. Nine hours later, another train collided with a truck at the junction of Castle Peak Road and Ping Kwai Road, Yuen Long. No one was injured in either incident.