Following the Saturday night search, a team of 40 police and officers yesterday went to Maimuna Garden Home and searched the entire apartment again.
A welding tool was found in one room and seized for examination.
Deputy national police were chief Chakthip Chaijinda said police were deployed to five area to track down more suspects. He declined to disclose the locations.
Police spokesman Prawut Thawornsiri said yesterday a network of foreign nationals is thought to be behind the Erawan shrine blast.
Pol Lt Gen Prawut said significant quantities of bomb-making materials including detonator cords and fuses seized from the suspect’s room during Saturday’s raid point to the possibility the suspect and his accomplices had several more targets in mind.
“ There were large quantities of bomb making materials including 10 detonator cords,” said Pol lt Gen Prawut, also assistant police chief.
The evidence has been sent for forensic examination and the finding will confirm if they are linked to the Erawan shrine and Sathon pier explosions, he said.
The police spokesman said the detained suspect, who cannot speak Thai, has so far denied any involvement in the Erawan shrine bombing , he said , adding authorities cannot confirm his identity and nationality.
“ He gave a certain amount of cooperation, saying where he travelled from. But we don’t believe everything he said. So far he has made no confession,” he said.
Investigators are not ruling out any motives at this stage and it is to early to conclude what role the suspect played in the attacks.
It is believed many other people, some of whom are likely to be Thai nationals, are involved, said Pol Lt Gen Prawut. He did not give a number.