WUHAN, April 14 (Xinhua) -- Train service through Wuchang, central China's Hubei Province, resumed Saturday after completion of repair work on a section of collapsed roadbed, railway authorities said.

The Wuhan Railway Bureau said the collapse occurred at around 0 a.m. Thursday, causing about 20 ordinary trains on the Beijing-Guangzhou line to temporarily halt their services.

An emergency response plan was immediately launched, and a team of more than 1,000 engineers and workers were mobilized to deal with the collapse, according to the bureau.

The cause of the incident is under investigation.