EAST PALESTINE, Ohio (AP) - A plume of chemicals that spilled into the Ohio River after a fiery train derailment has broken up and is no longer a concern, Ohio’s governor said Friday, but worries remain among residents near the disaster site who’ve complained about lingering headaches and irritated eyes.

Despite repeated assurances that air and water testing has shown no signs of contaminants, some around East Palestine, along the Pennsylvania state line, are still skeptical and afraid to return to their homes.

Early next week, the state plans to open a medical clinic in the village to evaluate those who are worried and evaluate their symptoms, Ohio Gov. Mike DeWine announced. The clinic will include a team of experts in chemical exposures that is being deployed to eastern Ohio.

“These are very legitimate questions and residents deserve an answer,” DeWine said while also emphasizing that testing inside and outside of homes in the village have no found no signs of toxins that were on the train.

“We’re doing absolutely everything we can to assure residents to what the situation is,” he said. “I understand people have been traumatized. I understand skepticism.”

Earlier this week, hundreds of people showed up at a public meeting to voice concerns and get answers from not only state and local leaders but also railroad operator Norfolk Southern. But representatives of the railroad were absent, saying they were worried about physical threats.

DeWine was upset by the no-show and said Norfolk Southern President and CEO Alan Shaw needs to go to East Palestine and answer questions.