Police in Thailand have arrested two men over multiple blasts that targeted a central bar district and clock tower in the seaside resort of Hua Hin.
At least four people were killed when a succession of bombs hit five separate provinces on Thursday and Friday in coordinated strikes that authorities said were set up to cause chaos across the nation. Improvised explosive devices and fire bombs were used, police said.
Thirty-four people were wounded, including 10 European tourists, mostly in Hua Hin. They included three Germans, three Italians, an Austrian and three Dutch citizens.
No group claimed the attacks but the government said it had ruled out international terrorism without further details on who was behind the blasts, which appeared to target normally peaceful tourist areas. The ministry of foreign affairs announced the incident was “not linked to terrorism but is an act of stirring up public disturbance.”
Phuket’s Patong beach, a major seaside and bar strip, was also hit on Friday. In Hua Hin, about 200km (125 miles) south of the capital Bangkok, a street food seller and municipality worker were killed.
The UK Foreign Office asked its citizens to “exercise extreme caution, avoid public places and follow the advice of local authorities.”
A 12-year insurgency in the south of the country has killed more than 6,000 people but militants have never targeted tourists and violence has been limited to provinces further south than areas hit in this week’s strikes.
Resentment in other sectors of society has also been growing against the military junta, which wrestled power from the elected government of Yingluck Shinawatra in 2014.
Military chief and self-installed prime minister, Prayut Chan-o-cha, has promised elections but not until next year. Last week, the junta won a country-wide referendum that entrenches its power in government even if a civilian administration returns to high office.
Supporters of Shinawatra and her brother Thaksin, who also served as prime minister until 2006 when the military ousted him, have been arrested and questioned by the army during its rule, causing outcries from civil rights groups.
The timings of the attacks, on a national holiday for Queen Sirikit’s birthday, has also been flagged as significant by analysts. The military has promoted itself as the champion of the much-revered monarchy.
Hua Hin, normally full of Thai and foreign tourists, holds a large palace that King Bhumibol Adulyadej and his family use as a retreat. The two bombs on Friday morning that detonated at the clock tower were placed behind a large portrait of the king and queen.

Hanz Yonah, a 55-year-old Swedish man and permanent resident of Hua Hun, told the Guardian the attacks will seriously dent arrivals of foreign tourists, an industry that almost every business in the town survives on.
“People are scared. Shaking. There are bars all along these roads but the owners have their kids living there,” he said.
The attacks come a few days before the one-year anniversary of a devastating bomb in Bangkok that killed 22 people, and dented Thailand’s reputation as a global tourism hub. No group claimed that attack.
The UN World Tourism Organisation said it will continue to hold official World Tourism Day celebrations in Bangkok next month.
“This is the best expression of support and union against these hideous attacks,” said UNWTO Secretary-General Taleb Rifai.
Prime minister Prayut Chan-o-cha said this week’s bombs were an “attempt to create chaos and confusion.”
“This tragic incident will serve as a constant reminder to the Thai people that there are some malicious people in our society and in Thailand, who have perpetrated these acts since before our referendum day and now on one of the most important days for our nation,” he added later in a televised address on Friday evening.