One woman has died and at least 20 other people are injured following two bombs at a seaside resort in Thailand, local media has reported.

It is understood the double explosion took place after the devices were hidden in plant pots and detonated remotely using mobile phones.

The severity of the victims' injuries is not yet known.

The resort town Hua Hin, about 120 miles (200km) south of Bangkok, is popular with tourists in the area.

Local media outlet ThaiPBS tweeted what appeared to be a photo showing emergency services tending to the injured in a hospital.

And reports on the web sites of the Thai Rath newspaper and other media said the bombs were hidden in planters on a busy street with open-front bars.

The reported fatality was a female street food vendor. The victims include Thai people and foreign tourists, whose nationalities were not immediately known.

In pictures: Thailand bombings Show all 7 1 /7 In pictures: Thailand bombings In pictures: Thailand bombings An injured person is helped after a bomb blast in the southern resort city of Hua Hin on 11 August AP In pictures: Thailand bombings An injured person lying on the ground after a bomb blast in Hua Hin, Thailand, 11 August 2016. EPA In pictures: Thailand bombings An injured man being helped after twin bombs exploded in the resort of Hua Hin, Thailand, on 11 August AFP/Getty Images In pictures: Thailand bombings Thai rescue workers rush an injured bomb victim to a hospital following a bomb attack at the city clock tower in the center of Hua Hin, Thailand, 12 August 2016. A EPA In pictures: Thailand bombings Injured people receive first aid after a bomb exploded on August 11, 2016 in Trang, Thailand. Reuters In pictures: Thailand bombings A damaged street food vendor stall is seen where a small bomb exploded in Hua Hin on August 12, 2016. AFP/Getty Images In pictures: Thailand bombings An injured man receives first aid after two bombs exploded in the Thai seaside resort of Hua Hin on 12 August Reuters

It was not clear who was behind the attack, but the timing suggested it might be an effort to embarrass the military government that took power two years ago.

In another photo posted by the public broadcasting service, ambulances and police cars appeared to be stationed at the scene.

Junta chief and prime minister Prayuth Chan-ocha yesterday took credit for bringing stability back to Thailand after an extended period of unrest.

The incident took place on the eve of the birthday of Queen Sirikit in a town where she and King Bhumibol Adulyadej maintain a summer palace.