Criminal investigation

Thai police look for suspects after bombs hit tourist sites

Thais and tourists headed warily into the main part of a big holiday weekend Saturday as authorities looked for suspects and a motive behind a series of blasts that struck tourist resort towns across southern Thailand in some of the worst violence since a military coup two years ago. Police said at least four people were killed and dozens wounded, including 11 foreigners.

It was not clear who was behind the attacks Thursday and Friday, which followed a successful referendum held last weekend on a new constitution that critics say will bolster the military's power for years to come.

But the violence appeared aimed at undermining the country's tourism industry, which provides vital income to the government. One small bomb exploded on a beach in Patong on the island of Phuket and four others rattled the seaside resort city of Hua Hin, prompting businesses to shut their doors, streets to empty and anxious tourists to huddle inside their hotels.