In Narathiwat, bombs went off in three locations in Sungai Kolok district, killing one woman identified as Sarika Mama, and injuring several others, including security officers.
Two bombs also went off in Tak Bai district. Fires were reported in two locations in Sungai Padi district, police said.
In Yala, bomb blasts destroyed two electricity poles in Yaha district. Bomb blasts also were reported in two spots in Than To district and one spot in Muang district.
Insurgents launched gun attacks and set fire to a power pole in Krong Pinang district. Gun attacks were also reported at two spots in Bannang Sata district.
Police gave only sketchy details of the attacks which they said were a coordinated effort.