Prime Minister Srettha Thavisin is scheduled to visit the country's three southernmost provinces alongside his Malaysian counterpart Anwar Ibrahim next month following a deadly car bomb outside police flats in Yala on June 30.
The explosion, which killed an Islamic religious teacher and injured 16 people, including six police officers, was brought up for discussion at the Internal Security Operations Command (Isoc) in Bangkok on Wednesday. Mr Srettha is the Isoc director.
Mr Srettha has reportedly been in close consultation with the army commander and Deputy Prime Minister and Interior Minister Anutin Charnvirakul over the bombing.
He also disclosed a plan in which he and Malaysian premier Anwar Ibrahim will jointly visit the three southernmost provinces of Pattani, Yala and Narathiwat on Aug 3.
If necessary, the two leaders may meet sooner but Aug 3 is the ideal time for a visit, Mr Srettha said.
Earlier, the two leaders had a phone conversation to discuss the 44 arson attacks that struck Yala, Pattani, Narathiwat and Songkhla on March 22.
Malaysia serves as a facilitator in the peace negotiations between the Thai government and the southern insurgents, some of whom reportedly hold dual Thai-Malaysian nationalities.
Meanwhile, the National Human Rights Commission issued a statement condemning the car bombing and offered condolences to the families of the deceased and injured.
The commission also called on the government to provide full assistance to the deceased's family and those affected by the attack and to investigate the incident fully to ensure justice for all parties.
On Wednesday, an improvised explosive device (IED) was defused in Pattani's Khok Pho district.
The bomb was planted under a marble bench near a convenience store.