BEIJING - The Dragon Boat Festival holiday from Sunday to Tuesday is putting pressure on China's railway system, as more and more people choose to travel by train.

Some 12.1 million passenger trips were made Sunday, up 8.8 percent year on year, China Railway, a state-owned company, said Monday.

The company will add 253 trains Monday, when about 9.1 million passenger trips are expected.

It forecast that total railway passenger trips would reach 44.6 million between Saturday and Tuesday, up 10.5 percent year on year.

The Dragon Boat Festival, also called the Duanwu Festival, is traditionally celebrated on the fifth day of the fifth month on Chinese lunar calendar. It falls on Tuesday this year.

The festival commemorates ancient Chinese poet Qu Yuan. Chinese people eat zongzi, a type of rice dumpling, and race dragon boats during the festival.