ORLANDO, Fla. (CBS12) — Authorities are investigating after suspicious deliveries were reported at the offices of two Florida congressmen Friday, prompting a building evacuation in Orlando.

Police responded to the Orlando office of U.S. Rep. Maxwell Frost, who said his staff received a suspicious package similar to those sent to other congressional offices across the country.

The building was evacuated, and Frost said his staff was safe.

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About 45 minutes later, U.S. Rep. Darren Soto said law enforcement intercepted an envelope containing an unknown substance that was sent to his office in Kissimmee.

No injuries were reported in either incident.

Both incidents remain under investigation. Authorities have not released additional details about the contents of the deliveries.