Two Chinese researchers were charged with smuggling a biological pathogen that they planned to study at a University of Michigan lab, a complaint says.

The biological pathogen researched by a University of Michigan scholar from China can cause devasting diseases in crops, according to an unsealed federal complaint.

Two Chinese researchers have been charged with smuggling a fungus known to be a “potential agroterrorism weapon” into the U.S. with the alleged intent of studying it at the University of Michigan, authorities said Tuesday.