Last updated at 3.39pm: Through-trains between Hong Kong and Guangzhou started running again on Friday afternoon after emergency repair work on the mainland section forced a four-hour suspension.
The Kowloon-Canton Railway Corp (KCRC), operator of the cross-border train services, said Guangdong?s railway authorities on Friday morning warned them of the emergency repair work.
All through-trains were suspended for four hours, until shortly after 1pm, when the KCRC announced that Guangzhou-bound train services would gradually resume.
The first Guangzhou-bound train to set out from Hung Hom following the disruption departed at 1.25pm. The travelling time was expected to be longer than normal, the KCRC said.
It was still unclear when Hong Kong-bound trains would resume. The rail operator said it was awaiting further notice from mainland railway authorities.
The suspension was expected to also affect Hong Kong-Beijing trains, which would pass Guangdong, the KCRC said.
Traffic between Hong Kong and neighbouring Guangdong has become increasingly busy in recent years. Many Hong Kong people go to the mainland to conduct business, while mainlanders come to Hong Kong on leisure trips.