The Orlando Fire Department said a "legitimate threat" had shut down Pine Street and ordered evacuations of the fire department.
OFD said the threat involved a plastic half gallon milk jug container full of bolts. The container was found in a plastic bag with tape wrapped around it.
The container was found around 9:30 p.m. near the back bay door of OFD station 1 at Orange and Central. Officials said it was deliberately placed.
Nearby businesses in the area were also evacuated as a safety precaution.