Tibet welcomed a record 20 million tourists in 2015, according to sources at the autonomous region's "two sessions," the meetings of the local legislature and political advisory body running from Tuesday to Sunday.

This generated 28 billion yuan (4.26 billion U.S. dollars) in tourism revenue, nearly three times the figure in 2010.

Tibet held a number of festivals targeting tourists in 2015 and marketed new themed travel packages.

Regional capital Lhasa saw its tourism revenue more than triple over the past five years to an estimated 15.49 billion yuan in 2015.

The number of tourists visiting the city rose by a yearly average of 23.32 percent in the period to 11.79 million in 2015.