Two homemade bombs explode in front of Siam Paragon – The Nation, February 1, 2015
…Police said the bombs were planned [sic] behind a power transformer.
Transformer bangs rattle Siam Paragon – Bangkok Post, February 1, 2015
…Police spokesman Pol Lt Gen Prawut Thawornsiri later confirmed the transformer explosions, saying no injuries were reported…
Update: Double Bombs Target High-End BKK Shopping Mall – Khaosod, February 1, 2015
…”The EOD team confirms that the explosions near entrance to Paragon were caused by two improvised explosives that were placed behind a power transformer,” Pol Lt Gen Prawut Thawornsiri, assistant to the chief of Royal Thai Police, tweeted late Sunday night.
Police officers initially told the press that the explosion was caused by a malfunctioning electric transformer…
Update: Two bomb explosions rock Siam Paragon – ThaiPBS, February 2, 2015