One person died and dozens more were injured overnight after at least 10 bombs went off in Thailand's Muslim south, the military said on Thursday.
The blasts occurred around midnight in Yahring District in Pattani, one of three Muslim-majority provinces in largely Buddhist Thailand, near the Malaysian border.
Local media reported that the targets were a restaurant, an ATM machine, and a store near an adjacent police station. Eleven policemen were wounded.
A civilian man was killed after being caught in a blast near a hair-dressing shop, a military spokesman said.
No group claimed responsibility for the attacks which authorities have blamed broadly on armed groups.
In January, the military and conflict analysts said violence in the south had fallen to its lowest level in more than a decade because of stepped up security efforts.
"The people causing the trouble want to show they are still active," said Colonel Yuthanam Phetmuang, deputy spokesman for the military's Internal Security Operations Command.
Resistance to central government rule has been ongoing for decades in the area but violence picked up significantly in 2004.
People in the south complain of years of neglect by Bangkok.
The region was an independent Malay Muslim sultanate a century ago before being annexed by Thailand.