The powder was found around 1:33 p.m. Tuesday on the counter of the ATM machine outside the Chase Bank located at 22 S. Liberty Drive, the police department said.
Agents with the Rockland County Sheriff's Office Hazmat Team are testing the powder, police said.
As a precaution, the bank is closed during the testing and removal of the powder, Stony Point Police said.
This is a developing story. Check back to Daily Voice for updates.
Click here to follow Daily Voice Tappan-Blauvelt and receive free news updates.