Thai police on Monday said at least 20 people were involved in carrying out a wave of deadly bombings in the country's south earlier this month.
Thailand's junta on Thursday detained at least 15 suspects at military barracks on suspicion of launching a string of deadly bomb and arson attacks against tourist resort towns last week.
A Thai military court issued an arrest warrant on Tuesday for a second suspect in connection with a wave of deadly bomb attacks last week that killed four people and injured dozens, police said.
A series of bombing and arson attacks in southern Thailand that killed four people and wounded dozens was orchestrated by a single person, Thai police said, while a man has been arrested in relation to one of the attacks.
A string of bomb attacks hit popular tourist towns across Thailand, leaving four dead and many wounded, with authorities on Friday ruling out terrorism despite suspicions insurgents in the kingdom's deep south are responsible.
Bomb attacks claimed by Islamic State against a state-run cooking gas factory in Baghdad's northern outskirts on Sunday killed at least 11 people, including policemen, and wounded 21 others, police sources said.
Brussels airport will partially reopen for passenger flights on Friday evening after its closure following the March 22 bomb attacks, the company running the airport said.
One person was wounded and detained in a major police operation in the northern Brussels borough of Schaerbeek on Friday, Belgian public broadcaster RTBF quoted the local mayor as saying.
Belgian media which earlier reported the arrest on Wednesday of a prime suspect in Tuesday's bomb attacks in Brussels said the person detained was not, in fact, Najim Laachraoui.
Bomb attacks in Syria's central city of Homs and near a shrine outside Damascus killed at least 87 people on Sunday, as Washington pursued efforts for a ceasefire.