A large number of Buddhist monks and supporters took part in a protest march in Kalutara on Monday, demanding the removal of the mosque in Dambulla.
The protest was organised by a Buddhist organisation called 'Buddhist Protection Foundation'.
Addressing reporters, the Executive Director of the Foundation, a Buddhist monk, Puliyadde Sudhamma Thero vowed that Monday's protest was just a "beginning in a series of protests" against the mosque.
He said that "muslim extremists" had built the mosque in a sacred Buddhist area.
Last month, thousands of Buddhist monks and protesters protested outside the mosque in Dambulla, calling for the mosque to be demolished as it was built on 'sacred Buddhist' ground.