CDC team falls sick probing Ohio train derailment

Authorities say seven US health investigators fell ill while probing the impact of the 3 February train derailment in East Palestine, Ohio.

According to the Centers for Disease Control and Prevention (CDC), the investigator's symptoms included nausea and headaches.

Locals in East Palestine have reported similar illnesses.

The train was carrying vinyl chloride and other potentially hazardous substances.

The CDC investigators formed part of a team that was conducting house-to-house interviews in the area of the derailment last month, according to authorities. They immediately reported their symptoms to federal authorities after they fell ill.