Police suspect man in security video is Bangkok bomber

BANGKOK (AP) — A bomb exploded at a popular open-air shrine located at a key Bangkok intersection Monday evening, killing at least 20 people and injuring more than 100 others. Here is a summary of what we know and don't know.

WHAT WE KNOW:

An improvised bomb blew up around 7 p.m. Monday at the Erawan Shrine, an open-air Hindu temple frequented by tourists and local residents, near a busy intersection in the heart of Bangkok.

In addition to the human casualties, the blast shattered nearby shop and office windows and burned motorbikes but there was no visible structural damage to nearby buildings.

Police chief Somyot Poompanmoung said the bomb was made with a pipe wrapped in cloth and weighed 3 kilograms (just over 6 pounds).

Later Tuesday, Police Lt. Gen. Prawut Thavornsiri told The Associated Press that a man seen in security video wearing a yellow T-shirt and carrying a dark-colored backpack was a suspect and believed to be "the bomber." The images were apparently taken from closed-circuit video at the shrine before the bombing occurred around 7 p.m. Monday.

Video footage posted separately on Thai media appeared to show the same man sitting on a bench at the crowded shrine, then taking off the backpack and leaving it behind as he walked away.

WHAT WE DON'T KNOW:

It was virtually impossible to determine anything about the motive for the attack from the video footage of the man, and no individual or group has claimed responsibility.

Analysts have identified three possible motives — Thailand's decade-long political upheaval, a Muslim insurgency mostly in southern Thailand and international terrorism — but authorities say it was too soon to link the attack to any of them.