Ticket prices for traveling on the inter-city trains between Beijing and Tianjin will rise soon, local railway authorities said Tuesday.

Starting from May 28, the price of first-class seat tickets traveling between Beijing and Tianjin will increase from the current 65.5 yuan ($10.4) to 88 yuan, an increase of more than 30 percent, China Railway Beijing Group Co Ltd said.

The price for special-class seats will rise to 99 yuan from the current 93.5 yuan.

The price for second-class tickets will remain unchanged at 54.5 yuan.

The price increase was adopted in line with a guideline made public earlier by the China Railway Corp, the national railway operator.

The guideline said starting May 27, railway operators could adjust price ratios between higher-class seats and second-class seats.