Malaysia confirmed the arrest of three suspects in connection with the investigation into a bomb blast in central Bangkok last month that killed 20 people, police chief Khalid Abu Bakar said on Monday.
Two Malaysians and a Pakistani national were arrested and were assisting with the investigation, Khalid told reporters.
The arrests of the two men and one woman were made after a tip-off by Thai authorities, he said.
The explosion ripped through a Hindu shrine in the Thai capital on Aug 17, killing 20 people and wounding more than 100. Fourteen foreigners were among those killed.
The police chief said they were still trying to determine the whereabouts of the main suspect behind the bombing and said, so far, there is no evidence that he is in Malaysia.
"We are not sure whether the main suspect is in this country, we don't know, we don't have a real evidence to show that he's in this country so we are investigating it," he said.
He added that the suspects will remain in custody in Malaysia and did not see the need to hand them over to Thai authorities at this time.