JINAN - Services along the Beijing-Shanghai high-speed rail have returned to normal after a factory explosion caused a power outage, authorities said Tuesday.

Firemen clear the debris at the blast accident site in a concrete additive plant in Jinan City, capital of east China's Shandong Province, Nov. 29, 2016. The explosion on Tuesday morning disrupted the power supply to a section of the Beijing-Shanghai high-speed rail. The power outage resulted in delayed or canceled trains. Services along the rail were back to normal on Tuesday noon.??[Photo/Xinhua]

An explosion at around 9:30 a.m. at a concrete additive plant near a high-speed railway in Jinan city, eastern China's Shandong Province, disrupted railway power supplies.

The power outage resulted in delayed and canceled trains, according to Jinan government sources.

By around 9:50 a.m. the fire was contained, and there were no reported casualties.

To help stranded passengers, 16 extra trains from Beijing South Railway Station, and one from Tianjin West Railway Station, were put into service, according to Jinan West Railway Station.
An investigation is underway.