A total of 51 people have been arrested in Thailand for their suspected involvement with trafficking of migrants from Myanmar and Bangladesh.
Police said arrest warrants have been issued for four more suspects, reports the Asia News Network.
According to the report, some 30 suspects are still at large.
Region 9 Police Deputy Commander Pol Major General Putthichat Ekachan said the new arrest warrants brought the total number to 81.
The police official said they were were searching for the other suspects in Songkhla, Satun and Ranong.
Earlier, some 12 Rohingya migrants were brought to identify sites which are believed camps. They were asked to identify the suspects who manned the camps where they were held.
Besides, the law enforcers took pictures of various camps and showed them to some suspected human traffickers. The suspected where then asked to identify which camp they worked at.
On Friday, Myanmar's navy seized a vessel off its coast with more than 700 migrants off its southern coast.
Thousands of Rohingya from Myanmar as well as Bangladeshi economic migrants have been attempting perilous boat journeys organised by human traffickers to Southeast Asia.