Thai officials said two other men seen in surveillance footage are also being treated as suspects, Reuters reported.
Sunny Burns turned himself in to police to clear his name after his immigration papers and local address were posted on social media.
A Thai official described a suspect seen on camera before Monday's bombing in Bangkok, the Associated Press reported.
The bomb appeared to have been attached to a small motorbike, but initial reports were unclear if it was detonated inside or outside a shrine.
Indonesia's government has struggled to hire and train staff quickly enough to oversee its fast-growing aviation market, which the International Air Transport Association expects to triple in size by 2034.
The majority of tourists killed in Monday's blast were from China or India.
The delay is a sign of the divisions within the regional bloc in dealing with China's assertiveness in the South China Sea.
All-Stars Investment, with interests in Xiaomi and Uber's biggest Chinese rival Didi Kuaidi, led the latest $300 million funding round into the Airbnb-like company.
Failure to seal the agreement is a setback for U.S. President Barack Obama, given the trade pact's stance as the economic arm of the administration's pivot to Asia and an opportunity to balance out China's influence in the region.
The unprecedented effort to find Flight MH370 has been marred by bitter conflict among the parties involved, with Malaysia a particular focus of ire.
Harsh weather conditions have hindered the search and rescue operation, according to the authorities.
The investigation was described as the "biggest into human trafficking" in Thailand's history.
Beijing's relationship with Cambodia may threaten Washington's influence in the Asia-Pacific region, analysts say.
Defense lawyers in the trial of two Myanmar men accused of killing two British backpackers on a Thai resort island last year said on Wednesday they would focus on the reliability of crucial DNA evidence.
The hour-long delays the new protocol was causing were apparently reason enough to abandon them.
Americans won the mathematics competition for the first time in 21 years.
Taiwan's two major political parties are fielding women as presidential candidates in 2016, setting the stage for the country's first woman president.
“We will wait for now and not introduce it to the cabinet for approval.”
Ten people were found guilty of "insulting the monarchy and publishing false information by computer."
“Edging closer to China is understandable, even necessary, but buying submarines from the Chinese is something else much more alarming."
Members of China's Uighur minority say they are fleeing persecution at home, but the Chinese government has accused them of harboring terrorists.
Tensions have renewed between Beijing and Turkey over the treatment of Muslims in China's Xinjiang province.
