Phantom of Chinatown

Phantom of Chinatown is a 1940 American mystery film directed by Phil Rosen starring Keye Luke. This is the last of the Mr. Wong films and the only one to star Luke in the role originated by Boris Karloff.

In the tomb, the team found a scroll, telling of a secret Temple of Eternal Fire. The temple is believed to be hiding a previously unknown oil reserve, and would be of great financial importance to the Chinese people were it to be discovered.During the expedition, when the tomb was opened, a forceful hurricane took the life of Mason, the copilot. The storm was predicted by an ancient curse guarding the tomb. Unfortunately, as Benton is about to reveal the contents of the scroll during the presentation, he starts choking and ultimately dies from suffocation. ........

Source: Wikipedia