The number of South Korean tourists to North Korea's Mount Geumgang resort has dropped by more than 40 percent since Pyongyang test-fired ballistic missiles last month.

Hyundai Asan, the tour operator for the scenic mountain in the North, said Saturday that 19,600 travellers visited in July, down 43 percent from the same period last year.

The North has allowed South Korean tourists to visit Mount Geumgang on its east coast since 1998. More than 1.2 million South Koreans have visited the mountain so far.

Analysts believe the decrease was spurred by the floods which hit the Korean Peninsula hard in July, as well as the rising tension between the two Koreas over the North's missile tests.