Shortly after the August 17 blast that killed 20 people and injured more than 100 others, the court approved an arrest warrant for a foreigner who was seen on CCTVS placing a backpack in the compound of the shrine before the bomb went off.
On Saturday, police arrested a foreigner at an apartment in Bangkok's Nong Chok district. Police refused to say whether the suspect was the alleged bomber wanted in the first arrest warrant.
Prawut said Monday that the arrested suspect was involved with the Ratchaprasong and Sathorn pier bombings but his nationality was still not clear.