Washington (CNN) House Speaker Nancy Pelosi on Sunday sent a letter to Democratic members of Congress announcing the House will introduce and vote on a "War Powers Resolution to limit the President's military actions regarding Iran" amid rising tension.

The resolution, Pelosi writes, "reasserts Congress's long-established oversight responsibilities by mandating that if no further Congressional action is taken, the Administration's military hostilities with regard to Iran cease within 30 days."

The letter comes as the US is deploying thousands of additional troops to the Middle East following the airstrike that killed Iranian commander Qasem Soleimani. Earlier Sunday, President Donald Trump reiterated his threat to target Iranian cultural sites.

"Last week, the Trump Administration conducted a provocative and disproportionate military airstrike targeting high-level Iranian military officials. This action endangered our servicemembers, diplomats and others by risking a serious escalation of tensions with Iran," Pelosi writes.

Pelosi said the resolution would be led by Rep. Elissa Slotkin of Michigan, who previously worked for the CIA and was an analyst for the Defense Department specializing in Shia militias.

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