Twitter suspended the accounts of Danielle Stella, a Republican candidate hoping to challenge Democratic Representative Ilhan Omar of Minnesota next year, after she suggested the congresswoman should be tried for treason and hanged.

Ms. Stella’s campaign account said on Tuesday, “If it is proven @IlhanMN passed sensitive info to Iran, she should be tried for #treason and hanged,” according to screenshots of the tweet. She later added a photo of a stick figure hanging from the gallows, The Washington Times reported.

The tweet referred to unsupported stories that Ms. Omar was recruited as a “Qatari asset” who gave information to Qatar that was given to Iran, something she denied to The Jerusalem Post. The office for the congresswoman called the stories “outlandishly absurd.”

The personal and campaign Twitter accounts for Ms. Stella, who is running for Minnesota’s Fifth Congressional District, which elected Ms. Omar in 2018, were permanently suspended for “repeated violations” of the platform’s rules, Twitter said in a statement on Saturday.