Staffers of Democratic presidential candidate Andrew Yang reached out to the FBI after they received death threats during a trip to New Hampshire.

Officials received several emails from a sender going by HitmanYang threatening to shoot members of the campaign while they were in the state, The Hill reported .

"Recently, the campaign received threats via email regarding the candidate and specific public events," a Yang staffer told The Hill. "Due to certain specific information contained in the emails, and out of an abundance of caution, we immediately contacted the FBI and local enforcement and have been working with them."

Yang on the Trail View All 13 Images

Many of the emails referenced the campaign's tweets. HitmanYang threatened that if Yang tweeted a certain number of times, staffers would be shot. The sender did not specify the number of tweets.

One of the emails reviewed by The Hill suggested that several people were behind HitmanYang and that they have pooled their money to bet on how many tweets the campaign would send in a week.