TAIPEI (Taiwan News) — An occupational safety investigation has been opened into the death of a cameraman and a sound recorder working on a drama near a waterfall in Miaoli County, reports said Saturday (March 12).

The cameraman, surnamed Huang (黃), 38, and the sound recorder, surnamed Wang (王), 34, were finishing shooting a new television series in Nanzhuang Township Friday (March 11) when they lost their footing and fell down a cliff, CNA reported. A helicopter transferred them to a hospital, where they were pronounced dead.

The county said it has sent inspectors to the site and would be investigating working conditions on the set, which was managed by Domani Production Co. Prosecutors added that they would also be looking at the incident before considering how to proceed based on evidence and on the wishes of relatives.

The main star of the drama, singer Aaron Yan (炎亞綸), announced online that he would suspend cooperation with Domani as long as the company is unable to provide a clear explanation of the incident and guarantee the safety of the crew, UDN reported. On its Facebook page, Domani said it was halting production on the show while mentioning it has taken safety precautions at the site.

The show is a vampire love story and has been dubbed a Taiwanese version of the “Twilight” franchise, according to media reports.