Two Japanese tourists died over the weekend when they were hit by falling rocks at a park in southeastern Mexico, local media reports and Japanese diplomats there said Monday.

Spanish news agency EFE and the Japanese Embassy in Mexico City identified the two as Takahiro Tsujita, 26, and Naoko Nakamura, 25, who died Sunday while on a visit to the Ikkil natural park in the Yucatan Peninsula. A local report said the two were newlyweds.

The Foreign Ministry in Tokyo said Tsujita and Nakamura were touring a cenote, a deep limestone sinkhole with a pool at the bottom, by boat at the time of the accident.

The ground in the area had been loosened by continuous rain, according to reports.

The ministry declined to disclose the addresses and professions of the two based on their families' requests.

The two had been part of a group of 15 Japanese tourists visiting the international beach resort of Cancun in Yucatan, and had been touring Chichen Itza, known for its Maya ruins, and other locations.