Updated

Fifteen people were injured by several explosions set off by suspected insurgents in a city in Thailand's restive south, police said Friday.

The improvised bombs exploded Thursday night and Friday morning at 17 places in Yala, including commercial district and banks, police Col. Jamlong Suwalak said. He added that two devices that did not explode were also found.

In one attack, Jamlong said witnesses saw two men on a motorcycle throwing a grenade at a local breakfast restaurant, hurting one person.

Yala Hospital nurse Netchanok Sintiratti said an 11-year-old boy was among the injured from Thursday's explosions. She said all of the injuries were minor.

Yala is one of the three Muslim-majority provinces in predominantly Buddhist Thailand.

More than 5,000 people have been killed since an Islamic insurgency began in the region in 2004. The insurgents have not issued specific demands but are generally believed to be fighting for an independent Muslim state.