WASHINGTON (Reuters) - The United States on Tuesday targeted companies from China and Dubai for allegedly helping Iran evade weapons and oil sanctions, a signal Washington will keep pressure on Tehran over its nuclear program.

The U.S. Treasury Department said it was sanctioning eight Chinese companies for procuring missile parts for Iran. The department also said it was targeting a firm based in Dubai and several associated individuals for helping Iran evade U.S. sanctions against its oil industry.

(Reporting by Jason Lange; Editing by Andrea Ricci)