The Nassau County Courthouse on Old Country Road in Mineola was evacuated late Monday after a letter was opened inside the building containing “possibly hazardous material,” according to a law enforcement official
The courthouse was cleared around 4:30 p.m. as a precaution after the letter was opened.
Around half a dozen people were reportedly being monitored after coming into contact with the letter.
There was no immediate confirmation on what material may have been inside the letter, nor how it got to the courthouse and who opened it.
The investigation is ongoing.
