An officer located a small bag on the outside ledge of the platform. The placement was suspicious in nature and an explosive detection K-9 indicated that the bag may contain hazardous material, so the bomb squad was called out. The station was closed and trains were not allowed to run through the station. The bomb squad was able to safely remove the bag, x-ray it and determined that it did not contain explosive materials. The station was closed for almost three hours before the item was deemed safe, the station was re-opened and normal train traffic was resumed.