WASHINGTON - Eight Missouri Republicans, all representing a state U.S. Congress seat, sent a letter to President Joe Biden on Wednesday seeking answers about Venezuelan-based gang members and urging stronger immigration enforcement measures.

Missouri U.S. Rep. Sam Graves led the letter, which also included signatures from Missouri U.S. Sens. Josh Hawley and Eric Schmitt, among others.

The letter highlight's the group's concerns over the Biden administration's handling of immigration enforcement. It references a traffic stop on Oct. 25, 2024 in Clinton County, Missouri.

The letter, along with a news release from Graves, claims that two people involved in that traffic stop were identified as Venezuelan nationals with alleged ties to the Tren de Aragua gang, but they were later released. FOX 2 has reached out to the Clinton County Sheriff's Office for comment on the traffic stop referenced in the letter.

Earlier this year, the U.S. Department of Treasury has identified Tren de Aragua as a "transitional criminal organization."

The letter questions the alleged release of individuals in Missouri with alleged gang ties.

"We write to you today to express our deep and growing concern regarding your administration's refusal to hold Venezuela accountable for unacceptable delays in the removal process for illegal immigrants. These delays, sometimes indefinite, not only give the appearance that a foreign nation is being allowed to dictate the enforcement of U.S. immigration law, but also put our communities at risk," the letter reads in part.

The letter further urges the Biden Administration to resume the Trump-era Remain in Mexico policy, which required asylum seekers to wait outside the United States while their immigration cases were pending. That policy ended in 2022.

The letter was signed by Graves, Hawley and Schmitt, along with Missouri U.S. Reps. Mark Alford, Eric Burlison, Blaine Luetkemeyer, Jason Smith and Ann Wagner.