China's road and water passenger volume logged a year-on-year decline in the first four months of the year, as the resurgence of domestic COVID-19 cases curtailed demand for transport, data from the Ministry of Transport showed.

Road passenger trips stood at 1.22 billion during the period, plunging 30.7 percent year on year. Central China's Henan Province reported the steepest decline, with road passenger trips diving 61.3 percent from a year ago.

Beijing saw its road passenger trips rise 6.6 percent year on year.

From January to April, the country's water passenger volume shrank 40.2 percent from one year earlier to 30.49 million trips, data showed.

China's northernmost province of Heilongjiang registered the sharpest decrease, with water passenger trips plummeting 98.8 percent year on year.