Five men are accused of conspiring to smuggle aircraft parts, electronic components and other technical equipment from the U.S. to Pakistan to support that country’s nuclear program, according to an indictment unsealed Wednesday in federal court in New Hampshire.

The men were indicted by a federal grand jury in October. The document said that, between September 2014 and October 2019, the group operated an international network of front companies that existed to acquire goods for a Pakistani group called the Advanced Engineering Research Organization and the Pakistan Atomic Energy Commission.