Ohio Senators J.D. Vance (R) and Sherrod Brown (D) are calling on officials to ensure access to medical testing for people affected by the East Palestine train derailment.

Vance and Brown sent a letter Monday to EPA Administrator Michael Regan and CDC Director Rochelle Walensky about concerns over testing for residents.

"We have spoken with multiple constituents who have attempted to get this kind of baseline testing done by their primary care doctors, only to learn that their local doctors lack the capabilities," the senators said in the letter.

The lack of access to testing led the senators to call on the federal government to allocate the resources and expertise needed to find a medical baseline for the community.

“In the coming months and years, additional epidemiologic assessments will be necessary to identify potential longer-term negative health outcomes in exposed residents.”

Vance and Brown said their visits left them "struck by the anxiety and lack of trust" experienced by the community.

They also called on the EPA to continue regular testing of the air, surface water and groundwater in East Palestine and the surrounding community.