Japan Expo Thailand 2015, an event to promote Japanese culture featuring the all-girl pop group AKB48 and others, has been postponed in the wake of a deadly bombing in Bangkok.

The expo had been scheduled for Aug. 28 to 30 at Central World, a huge shopping complex across the street from Erawan Shrine, which was struck by a bombing on Monday, killing at least 20 people and injuring 126 others.

On Tuesday afternoon, a small bomb exploded near a pier on the capital's Chao Phraya River but caused no injuries, according to police.

On their website, the event organizing team expressed its sympathies to the injured and condolences for those who lost loved ones in the attack.

"At this juncture, we would like to postpone this event until further notice," they said.

The event would have included a concert by AKB48 as well as sales of Japanese foods and a fashion show.