Burmese officials say a small bomb has exploded near the main railway station in the capital, Rangoon, but caused no injuries.
The officials say the blast occurred early today (Sunday) outside the train station.
The incident comes a day after three bombs exploded on a bridge near the station. No one was injured.
The government blamed exiled dissident groups for planting Saturday's bombs, accusing of trying to disrupt a constitutional convention under way in Burma.
Information for this report is provided by AP and Reuters.