Accra:US federal authorities are investigating a series of suspicious mailings sent to election offices across multiple states, the FBI announced on Thursday. The mailings, which have been sent to various addresses nationwide, include Secretary of State offices and their related election offices.

According to Anadolu Agency, the FBI and the US Postal Inspection Service are collaborating with law enforcement partners to identify those responsible for these mailings. The incidents have led to building evacuations and emergency mail seizures in several jurisdictions.

In Oklahoma, the State Election Board facility was evacuated on Tuesday morning following the receipt of an envelope containing an unknown powdery substance. The site was secured by the Oklahoma Highway Patrol, local fire crews, and the Oklahoma National Guard. Officials confirmed that no staff members were injured in the incident.

A similar situation occurred in Ohio, where postal inspectors intercepted a suspicious envelope addressed to Ohio Secretary of State Frank LaRose before it could be delivered on Wednesday. This prompted state authorities to issue security advisories to county election boards.

The National Association of Secretaries of State and the National Association of State Election Directors expressed deep concern over these incidents in a joint statement. They emphasized that security measures and contingency plans are in place to address potential threats and emergencies while ensuring the continuation of essential election operations. The United States is set to hold midterm elections on November 3.