China expanded online purchase service of train tickets Sunday by including Z nonstop express trains nationwide into the service, to save passengers from long-time queuing.

Passengers can log on at www.12306.cn, the ministry's official online ticket-booking website, to buy train tickets, China Daily reported Sunday.

The webiste initiated the online service in June, but only for high-speed trains like G and D fast trains, and the C intercity express trains, the report said.

Tickets for the T express trains will be available online from Dec. 10, the report said, citing the Ministry of Railways.

Compared with the better equipped and more expensive high-speed trains, Z and T trains run at a top speed of 160 kilometers an hour, much slower than the high-speed trains.

The People's Daily reported earlier that railway minister Sheng Guangzu said all trains, including the slow trains, will have tickets sold online by the end of this year.

The move will help eliminate the aggravation of waiting in line at railway stations and ticket outlets and may also help curb ticket scalping, according to the report.