WASHINGTON — The Trump administration imposed sanctions on three senior Hezbollah officials in Lebanon on Tuesday, accusing them of having a “malign agenda” to support the Iranian government.

The sanctions were the first to directly target members of Lebanon’s Parliament and underscored the White House’s intention to ratchet up pressure on Iran by punishing groups with ties to its government.

The United States considers Hezbollah a terrorist organization even though members of the group have embedded into legitimate parts of the Lebanese government. Amin Sherri and Muhammad Hasan Ra’d, who are members of Parliament, and Wafiq Safa, a senior Hezbollah security official in Lebanon, were added to the Treasury Department’s sanctions list.

“Hezbollah uses its operatives in Lebanon’s Parliament to manipulate institutions in support of the terrorist group’s financial and security interests, and to bolster Iran’s malign activities,” Sigal Mandelker, the Treasury Department’s under secretary for terrorism and financial intelligence, said in a statement.