The road was immediately closed for traffic movement. Divers searched into the water to recover any surviving pieces of the device.
Sathorn pier is a major terminal linking Chao Phraya River commuter boats and the nearby Skytrain station. It's also a major touriststop, especially for Chinese tour groups.
At least 21 people were killed and over 120 were injured, when a bomb exploded close to Hindu Erawan Shrine in Bangkok's central Chidlom district at 6.55 pm on Monday.