The deadliest recent incident was the killing of 10 Muslims at a mosque in Narathiwat in early June.

Teachers targeted

Public school teachers are regularly attacked because they are seen as symbols of government authority and more than 100 teachers have been killed over the past five years in the region.

As a result many teachers have military escorts, although the escorts themselves have become frequent targets.

The fighters behind the attacks have not specifically stated their motives, but they are thought to be fighting to establish an independent state in Thailand's the three southern Muslim-majority provinces.