From [1] VOANews, with thanks to Twostellas:

Two more bombs went off in Thailand's Muslim-dominated south Friday morning injuring at least 20 people during a week of continuing violence. The blasts come as Thailand's prime minister prepares to address the nation on his government's deadly handling of a Muslim protest Monday.

The first bomb exploded Friday morning near busy tea shops in the provincial capital of Yala 12 hundred kilometers south of Bangkok. About 90 minutes later a second blast occurred as a bomb squad was clearing the area. Most of the injured were police.

Another bombing Thursday night killed several people and wounded more than a dozen in Narathiwat.

The bombs appeared to be targeting security forces, accused of using excessive force to quell the violence in the mostly-Muslim provinces of Yala, Pattani, and Narathiwat that border Malaysia.