A key suspect in the August 17 deadly Bangkok bombing was on Tuesday taken to the crime scenes for re-enactment, police said.
Yusufu Mieraili, the suspect, was arrested in Thailand's Sa Kaeo province near Cambodian border on September 1.
The suspect was taken to apartment houses in the capital's eastern suburb, a spot outside Hualumpong railway station where he had handed out a backpack supposedly containing explosives, and one corner of Ratchaprasong intersection near the scene of the blast, Xinhua reported on Tuesday.
Mieraili, who was charged with possession of explosives and explosive-making materials, admitted that he had delivered the explosive-laden backpack to a Yellow-shirted Arab man.
The man placed the bomb near Erawan shrine on August 17 and the blast killed 20 people and injured more than 100 others.
The yellow-shirted man, who is still at large, had been spotted at those suburban apartments days before the bomb attack, according to Mieraili when questioned by the police.
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He had made other confessions pertaining to the bomb attack, but could not be disclosed to the public at the moment, said police spokesman Lt. Gen. Prawut Thawornsiri.
At one of the rented apartments earlier raided by the police, another suspect identified as Adem Karadag alias Muhammed Bilaturk was arrested on charges of involvement in the bombing.
Karadag was charged with illegally possessing bomb-making materials found at the apartment in Nong Chok district, the police said.
The police spokesman quoted Mieraili as saying the bombing conspiracy had been carried out by about ten other persons besides the detained suspects.
Arrest warrants have already been issued for nine other bombing suspects who are still at large.